It's now summertime which gives the gang a chance to have fun in the pool. But Puppycorn is afraid of the deep end, so Unikitty and the rest try to help him and show him how cool the deep end is, but ...

Puppycorn is annoyed that Unikitty is always helping him and treating him like a little kid. Not wanting to be a "little brother" anymore, he eats some of Dr. Fox's "growing taffy" to literally grow ...