The principal adores his grandson very much and asks the Sket-dan to prepare a picture play to entertain him. They decide to base the story off of Momotaro, but change things up from the usual... Afterwards, he asks them to play with his grandson for an afternoon, but the kid doesn't seem interested in having fun at all.
I'd like you to do everything 
you can to show him a good time.
Confío en que ustedes serán 
capaces de divertirlo un rato.
Confío en que seréis capaces
 de divertirle un rato.
Quero que vocês façam tudo que for 
possível para que ele se divirta.