Hey Arnold!

Mugged / Roughin' It (1x9)

Air date: Nov 11, 1996

First Part: When Arnold gets mugged in the street, Grandma teaches him how to defend himself, but the training and fighting starts to get to his head. Second Part: Grandpa, Arnold, and Gerald are all going on an old fashioned camping trip... until Big Bob, Helga, and Phoebe show up with luxurious camping equipment.