Night 4 will start like the last two nights: no cutscene. The phone will ring and the Phone Lady would speak.

Phone Lady: "Hello? Hey! Night 4! Good for you. Um, there were some complaints from the day shift about the animatronics. They were kinda more active than usual and super aggressive. Would you have any idea on what that's happening. If you do, please tell us. We don't want the animatronics to be malfunctioning or anything.

Anyways, un, good luck and--

Ỳ̶̛̟̖̖̺͚͈̉͊̒́̈́́̚͘͝ͅo̵̧͍̎͠ȍ̴͚̜̙̱̘̥̭̠̯̻̞̰̉ͅọ̶̧̱̭̞͚̦̗̬̫͕̣͙̳̩̒̐͛͆̂̍̈́̀̆ớ̷̲̹̞̰͚̠̞͂͛̐̇̊̉̆͂̋̈́̉̀͜͝ǫ̵̧̠͎̼̜̹̙̭̥͙͑͜͝u̵̮̮͓͙͇͓̘̲͚̹̻̫͙͕͔̓u̴͉̳̤͎̻̥̞̯͈̖̾̏̾̒ủ̷̧͉̹̤̰͔̫̘̖͍͑̍ͅ ̵̦͈͈̳͕͍̱̪͉̪̌̅̂̐̈́̇͊͜͠͝͠͝ċ̶̯̤͙̹͇̲̞̞͙̒̐̉a̷̬͑̉̑̿́̑̈́̌͊̀͝ą̵̡̼̼̖͙̙͙̔̾̾͗͘ͅă̸̪̱̼̹̝̥͚̳̻͖̮͌̈́̀́̌͒̿̽̚͠a̵̧͉̯͖̖̮̪̭̹̰͈̼̱̠͓̋̈́́̌̽̿̋̈̒͊n̶̢̡̟͈̝̯̈͛̏̈́̿̓́͆͘̚n̷̤̰̩̝̻̩͛͛̋'̷̝̮̯̯̩̲̖͕̝̦͇̯̱̒͊͗͝ͅt̶͓̫̱͔̣̞̮̗̘̹̹̮̔͆̽̌̓̉̍̉͒̅͠͝t̸̡͓͓̥̹̯͇̤̲͔̙̓ ̴͇͚̜̘͉̯̫̳̻̰́̓̈̓͜w̴̠̖̩͈̦͚̺̙̍̚í̴̧̛̪͖͉̬̖̝͎͂̈̾͂̍̆̈̈́̑̎̚̚ͅȋ̴̢͎̬͓̗̌̄̓̕͝͠í̴̳͕̣̞̰̪̳̤̐͊̂̾̍̀̌͠͝i̷͉̣͎̬̩̤̠̟̜̳͚͂̿͜͜͝͠n̵̢̟̬̮͕̰̖̝̜͕̄͌̈͋̇͆́ǹ̶̨͉̝̻͔̘͈̝̟̟̩͖̦̾̑̿͑̂ͅ.̷̧̦̌́͛.̸̟̭͇͖̮̜̖̤͓̬̝̺̘͐̒͆͝ͅ.̵̧̧̫͕̦̩͈̺̜̺̋́͌́͐̋͗̕͠

The phone would hang up and the game would go on, but the animatronics would be more aggressive, especially Cliff.

Once at 6:00 am, the night would end.