Donatello Hamato and his brothers had snuck into April's high school to help her with some kraang bots that were trying to kidnap her...again.

Donnie was sneaking around and looking for clues as to why the Kraang were there and if there was any more left after he and his brothers dealt with them.

As he looked around the high school, he comes across a STEM lab. It was the perfect mixture of everything he was good at all in one room.

Eagerly, Donnie began looking around the room squealing in excitement as he messed with the robotics.