At the Space Tree Station, a target is shot at three times in the Shooting Range room by Rigby. "Ooooh! Time to kick this up a notch." Rigby sets the level of his laser gun to Master Blaster. "Uh Rigby, I don't think that's such a good idea." (Y/n) said. "Yeah dude, you can't shoot at maximum power. Your little body can't handle it." Mordecai said. "You don't know what my body is capable of!" Rigby shoots at the target, causing the shot to bounce everywhere, including cutting off a man's hairdo, leaving a hole on a man's donut, which he eats, it bounces through Colonel Rawl's office and is about to head towards the Canadian Domers' room. "Hey those new curtains really tie the room together eh?" Someone asked. "Yeah eh you want more maple syrup for your pan cakes eh?" Rigby's shot goes into the room and burns their curtain, causing the sprinklers to go off.

"Oh, I'm sorry! I'm sorry, eh!" The trio look at each other. "Nice going Rigby." (Y/n) said, and he smiles at her nervously. Later, Rigby and (Y/n) are in Colonel Rawls' office. "The Canadians?! Of all people they're the most pleasant group on the entire Space Tree!" Rawls shouted. "I said I was sorry." Rigby said. "You're a loose cannon Rigby, and I won't tolerate your unsafe behavior anymore!" Rawls shouted. "Unsafe?! I'm totally..." Rigby knocks off Colonel Rawls' coffee mug, causing it to spill on Colonel Rawls' keyboard and computer, knocking down the light repairman and his ladder. " ...safe?" Rigby asked, and (Y/n) face palms. "I'm putting you on probation, that means no more target practice, no offside privileges, and of course, no food trucks." Rawls said, and Rigby gasps in shock. "But tomorrow's Roxy's famous fry truck, her butt salt is delicious!" He shouted. "Guess its no butt salt for you." Rawls said. "Can't you just let me slide just this once?" Rigby asked.

"Hmm, if you pass the Space Tree safety test I'll let you off the hook, but I suggest you start studying now. This thing's dryer than a bowl of pretzels on dust planet 9." Rawls grabs a big safety manual and places it on his desk. "Come on, Rawls. I just graduated high school. I am not going to read that thing." Rigby said. "Well there is another way for those less literate." Rawls said. "Name it." Rigby said. "Perkins, awaken Spacey McSpaceTree." Perkins grabs a key, unlocks it and hits a button,

which awakens Spacey McSpaceTree, then Spacey comes in. "Hey, everybody!" He said. "What is that?" (Y/n) asked. Rawls chuckles. "Hello, Spacey, it's been a while." He said. "Who is this guy?" Rigby asked. "Rigby, (Y/n), this is Spacey McSpaceTree, our beloved mascot, he's been put in cryo-sleep for the last 30 years." Rawls said. "Pssht. That costume sure looks like it's from 30 years ago." Rigby said. "Costume?" Spacey asked. "Hey, show him some respect! He's going to stick with you until you pass the test." Rawls said.

"That's right. You can't be Safey McSafety without Spacey McSpaceTree. It's nice to wake up to a new friend. Put 'er there, Rigby." They both shake hands. "Woah, woah there! That's a very unsafe handshake you got there. We're gonna have to work on that." Spacey said. Rigby grumbles, later, the Space Tree safety test begins. "So, in conclusion, the seatbelt goes over the waist. Do you need another demonstration?" Spacey asked. "Augh! I got it! You already showed me, like, five times."

Rigby sips his space soda and puts it on the edge of his desk. "AAAAAAAAAHHHHH!!!! AAH!! Pump the brakes there, amigo! That's a safety violation waiting to happen!" Spacey shouted. "I was just putting it down, I wasn't gonna spill it." Rigby said. "You can though if you put it near the edge like that." (Y/n) said. "Okay, picture this: say you're walking around, minding your own business, then BAM!" Spacey knocks the space soda off the table. "You knock it into the table!" The space soda breaks on the floor and spills.

"Aw, come on!" Rigby shouted. "Then, next thing you know." Spacey slips on the soda, slides and hits the door. "Whoop! You end up hurting yourself. Or worse." He slips on the soda and slides until he hits the wall. "You end up in the hospital." He said, and (Y/n) scoffs a little. "Okay, I highly doubt that would happen." She said. "Yeah! You did that on purpose. That would never happen in real life." Rigby said. "Benson comes in. "Hey, what's all the commotion in here?" He slips on the soda and slides until he hits Spacey. Pops comes in with his tea set. "Oh, Benson!" He slips on the soda and slides until he hits Benson and Spacey, breaking his tea set. "Bad show!" He shouted. "See?!" Spacey asked.

Later, Muscle Man and Skips are in a weight room, with Skips struggling to lift weights. "Come in, bro, dig deep!" Muscle Man said. Skips keeps struggling until he finally lifts a weight until they float, revealing that it's zero gravity going off with a button pushed by Mordecai. Mordecai giggles. "Zero G." He said. They laugh while they have fun in the zero gravity room. "Aw, I wanted to pretend I could lift heavy stuff. Stupid probation." Rigby said. "They're not even wearing helmets in there! Uno momento, Rig-bud!" Spacey said. He goes into the room and floats near the button. "Hey, guys. Having a good time? Whoops!" Spacey hits the zero gravity button, turning the room back on and injuring Mordecai, Muscle Man and Skips with the weights. "Still look fun to you?!" One weight hits him on the helmet and he falls.

Later in the cafeteria, Rigby's friends look injured, except for (Y/n). "Dude, what's wrong with your new friend?" Mordecai asked. "He's not my friend! He's just teaching me about safety so I can get off probation." Rigby said. "Why didn't you just read the safety manual?" Skips asked. "Yeah, bro, it's a pretty informative read." Muscle Man said. "Well, I wish I knew that before I got stuck with this crazy tree guy following me around and judging my every move!"

Rigby slams his tray on the table. "Rigby, that's a safety violation! Did you know that seven out of ten lunchtime injuries are directly related to tray-slamming? This could have been you!" Spacey grabs Rigby's tray and slams it on the opposite side, splashing the food all over the gang, including the Canadian Domers. "And that isn't?" (Y/n) asked Spacey angrily. "Oh, I'm sorry. Sorry! I'm sorry." "Spacey, what's your problem?!" Rigby asked. "Hey, I'm just watching your back, buddy. I still gotta teach you about safety with music." Spacey said. He puts a tape in a boombox.

Spacey teaches Rigby about safety, including the following: Rigby opens an oven that cooks a pizza, then he is about to grab it when Spacey moves him out of the way and shows him a demonstration by touching the pizza, causing him to be caught on fire as he stops, drops and rolls on the ground, then he gives Rigby oven mitts, with Rigby looking at the pizza with Spacey's handprint on it. Spacey and Rigby are later on a field where Spacey makes the letter "S" with his arms while Rigby is wearing the oven mitts. In a virtual simulation room Rigby is in, he's wearing a virtual reality helmet as a space quake initiates and he's shaking, but Spacey grabs the helmet,

pushes Rigby out of the way and shows him another demonstration by taking cover underneath a table, thus breaking the helmet and gives it back to Rigby. Spacey and Rigby are once again on the field, with Spacey making the letter "S" with his arms again while Rigby holds his broken helmet. Later at the park gang's bunker, Rigby lays down on his trampoline,

but Spacey appears and gives another demonstration of how clothes will blind him by grabbing a pair of pants and blinding himself, thus Rigby leaves with a pillow. Spacey and Rigby are on the field, with Spacey making the letter "S" with his arms with a dancing jester dwarf while Rigby is wearing the oven mitts again. Later, Rigby drives a space cart with Mordecai and (Y/n), looking horrible. "Safe... Safey McSafety..." he snores and falls asleep. "Rigby, turn, turn!" (Y/n) shouted. Rigby quickly wakes up and turns the space cart, avoiding a huge box of dynamite.

"Gotta be safe! If I'm not safe, he'll show up!" Rigby shouted. "Dude, are you alright? You look horrible." Mordecai said. "Clearly he's not okay, Mordecai!" (Y/n) scolded. "It's Spacey! I gotta get him off my back once and for all!" Rigby said. "Yeah, you gotta pass that test. I can't take much more of that guy." Mordecai said. "Don't worry. I have a plan. Take the wheel! Come on, (Y/n)!" Rigby said. The duo leave the cart. "Wait, where are you going?!" Rigby and (Y/n) bail out of the space cart.

"Aren't you on proba..." Mordecai screams as he sees a dummy of Rigby in his place. (Y/n), Rigby and Colonel Rawls are in a test room. "So Spacey says you're ready for this?" Rawls asked. "Look, I even have written permission." Rigby shows him a tiny piece of paper that says "Rigby is ready 2 test, Spacey." Rawls looks at it. "Well, if Spacey says you're ready, you're ready. This is our testing overlook machine, or as we like to call it T.O.M. It's proficient in all forms of safety protocol. Hello, T.O.M., this is Rigby." He said.

"Hello, Rigby. I look forward to grading your test." T.O.M. prints out a future-looking test. "Woah. This is a test? Does it come with a crazy pencil or something?" Rigby asked. "No, there's no pencil. Just call out your answer and it will fill in automatically. Once it's complete, insert it into T.O.M. Good luck!" Rawls leaves. Mordecai is still taking the wheel in the space cart. "Augh! How long does he want me to do this? Huh?"

He sees Spacey in a police-like space cart in a side mirror as Spacey signals Mordecai to pull over, which he does, and Spacey comes to the space cart. "Rigby, old buddy, old, pal. Couldn't help but notice you were driving a little erratically back there. That's not very," Spacey sees the Rigby dummy. "SAFE?!?!" He asked. "Uh... woah!" Spacey grabs Mordecai by the chest. "Where is he?! Where's Rigby?!" He asked. "Dude, I don't know, I don't know!" Spacey lets go of Mordecai and leaves to look for Rigby.

"RIGBY!!!!!" Spacey shouted. Rigby and (Y/n) are in the testing room where he is taking the test. "Okay, question 17. B." The test fills up the answer. "Alright, question 18." Rigby said. "I'm coming, buddy!" Spacey drives up fast and a Canadian Domer jumps out of the way. "Look both ways! You're not being safe!" Spacey shouted. "I'm sorry!" He replied. "Hmm, hmm. This is easier than I thought. C!" Rigby said.

The test fills up the answer. "Goodbye, Spacey and goodbye, probation." Rigby said. "RIGBY!!!! YOU'RE NOT READY!!!!" Spacey shouted. "Uh-oh. A, B, D, A, B, B, B!" The test fills up his answers. Spacey runs towards Rigby while he runs with the test and is about to put it into T.O.M., but Spacey grabs the test and he and Rigby are struggling for it. "Let go!" Rigby shouted. "No! You still have so much to learn!" Spacey shouted. "No! I'm through with you!" Rigby grabs the test and struggles to put it into T.O.M.

"No!" Spacey bumps into Rigby as the test gets put in and T.O.M. is scanning the results. "Yes!" Rigby said. T.O.M. shows an error. "Error. Test malfunction." As (Y/n), Rigby and Spacey take cover, T.O.M. turns evil, floats and grows tentacles of four unanswered questions with the test in the middle of his body. "Now, look what you've done!" Spacey shouted. "Me?! It was you! YOU'RE RUINING MY LIFE!" Rigby shouted. T.O.M. attacks (Y/n), Rigby and Spacey, but they duck.

"Ruining your life? I thought we were bros. You're the first friend I've had in 30 years." Spacey was on the verge of tears. "Don't make like a tree and leave me." T.O.M. breathes fire as (Y/n), Rigby and Spacey jump, but the fire catches Spacey in the rump. "Spacey!" Rigby and (Y/n) shouted. "AAAAH!! WHAT DO I DO?! WHAT DO I DO?!?!" Spacey asked. "Quick, stop, drop and roll!" Spacey rolls to put out the fire, as the first question is correct and loses T.O.M.'s left tentacle. "The test! You gotta finish it, Rigby!" (Y/n) said.

Rigby looks at her. "You're right." He said. "Wh-what?! Us against that?! That's totally unsafe!" Spacey shouted. "Hey, sometimes you gotta be unsafe to be safe." T.O.M. grabs Rigby. "Rigby! Quick, grab the test and read him the questions!" (Y/n) shouted. "Which ones did you leave blank?" Spacey asked. "27, 44 and 83." Rigby said. Spacey goes through the test guide. "Okay, question 27: What do you do during a space quake?" Rigby drops from T.O.M.'s grasp and runs under a table. "I know this. Oh, duck and cover underneath the table!" T.O.M. is about to grab Rigby again as question 27 is correct, and his right tentacle retracts. "Nice one! Okay, next question: Where are you permitted to use Space Tree laser guns?" Spacey asked. "Only in designated shooting areas! Aah! Or, if under attack, of course!" T.O.M. pins Rigby as question 44 is correct, as Rigby grabs his tentacle and lands on top of T.O.M.

"Okay, last question: what should you never do with space soda?" T.O.M. is shaking to get Rigby off of him. "What are his options?!" (Y/n) asked. "A: Drink while operating heavy machinery, B: Put it on an edge of a table, C: Drink more than two bottles a day!" T.O.M. is still shaking to get Rigby off of him. " Come on, Rigby! We went over this!" Spacey shouted. T.O.M. grabs Rigby and pins him up the ceiling. "Rigby!" (Y/n) shouted. "D: All of the above!" With the last question correct, T.O.M. loses his last tentacle as Rigby falls and T.O.M. turns back to normal. "Safety test complete. Processing results. Congratulations. You pass." (Y/n) sighs with relief.

Later, the gang and the Canadian Domers are in Colonel Rawls' office, where they celebrate Rigby's congratulations party for completing the safety test with Rigby wearing a medal that says "I'm Safe!" "Thanks guys. Hey I worked out." Rigby said. "I never thought he could." Muscle Man said. "Thanks for helping me out, Spacey." Rigby said. " No problem. Sorry for being so clingy. If I learned anything, it's that being too attached is emotionally unsafe. Here." Spacey takes off his helmet and waves his long hair. "You keep that safe for me." He said. "You got it, friend."

Rigby puts on the helmet. "Care for more Roxy's food truck fries, Rigby? Or should I say, Safey McSafety?" Mordecai chuckles. Rigby gasps as he sees Muscle Man's space soda on the edge of a table. "Safety violation!" He shouted. "Come on, bro! I'm not gonna spill it!" Muscle Man knocks his space soda off the table. "Oops." The space soda breaks and spills on the floor as Anna, Benson and Pops enter Rawls' office with Pops' tea set.

"Tea time!" Pops said. They slip, slide at the gang and the Canadian Domers and they land on Rawls' desk as the light repairman falls again and lands on the table, sending the fruit punch bowl flying as it lands on the jester, causing him to back up into an escape pod and fly off into space. Fire breaks out, causing the sprinklers to go off. "I'm going back to cryo-sleep." Spacey walks away.