Aired: August 13, 2015 | Season: 4 | Episode: 3

Overview
Runtime: 11m
Directed by:
Written by:
Description
When Gumball and Darwin decide it's time they join a crew, they agree that the coolest posse in Elmore is the Senior Citizens. They do everything they can to fit in with them, going to extraordinary lengths to prove themselves worthy of running (well, walking very slowly) with them.