Episode Star Trek: The Next Generation S6E07 · 2369

Rascals

Rascals
Image: TMDB

A transporter accident turns the senior officers into children.

A transporter accident turns Picard, Guinan, Ro and Keiko O'Brien into children, and the crew has to handle a dangerous situation when the Ferengi attack the ship. The adults, now in children's bodies, have to take a leading role, and Picard has to command from a child's body.
The story is a comedy with an action finale, and it gives the cast a chance to play against type. It also has a touching theme about growing up and the loss of authority, and it is a fan favorite for its humor and its heart.