The people of the island were in a panic because of what has been happening to the island and because of a background character shortage because of all of the background characters who died in the last story 

Villagers: *panicking about crisis* 😨😱😨😱😨😱😨😱😨😱😨😱😨😱😨😱😨😧😨😧😨😧😨😧😨😧😨😧😨😧😨😧😨😱😨😨😱😧😨😱😨😱😨😧😨😧😧😨😧😧😨😧😨

Chief Blaze: *tries to calm everyone down*

Summer: I know how we can save our island all we need to do is take the boat find John Dory, and make him restore the heart because we were voyagers and we can voyage again 😄

Chief Blaze: 😡

Later 

Summer: you told me to help our people this is how we help our people 

Chief Blaze: 😡 *grabs torch* 

Summer: dad what are you doing 😨

Chief Blaze: I should've burned those boats a long time ago 😡

Summer: no don't we had to find John Dory. We have to restore the heart. *shows the heart* 

Chief Blaze: there is no heart 😡 this is just a rock 

Then Chief Blaze threw the heart and Summer ran to go get it, and she found it by her grandma's cane which scared Summer since she remembered when Branch talked to everyone about the day he lost his grandmother 

Villager: Chief its your mother 😨

Then Blaze and Summer placed their argument aside and ran to be by Current's side along with Amy which devastated Summer since even though she knows that she is not going to have her grandma forever she was still not ready for the day when that day comes then Summer's parents went to see if something could be done 

Current: *on dying breaths* go 

Summer: grandma 🥺

Current: go

Summer: not now I can't 🥺

Current: you must the ocean chose you follow the hook and when you find John Dory you grab him by the ear you say "I am Summer of Motunui you will board my boat sail across the sea and restore the heart of Te Fiti" *gives Summer her locket to store the heart throughout the journey*

Summer: I can't leave you 🥺

Current: there is nowhere you could go that I won't be with you 

Then with her grandma's approval Summer leaves to prepare for her journey to find John Dory and make him restore the heart 

https://youtu.be/l-64INXIolE

And she goes on the journey underestimating how difficult it's going to be