The Spy Father Murphy : Season 1 Episode 15

When Rodman's unruly son is kicked out of boarding school, Rodman enrolls him at Gold Hill making him pose as an orphan in order to spy on the school, and he learns the secret of Murphy's disguise. Murphy, Will and Ephram take the boy on a camping trip to keep him from telling their secret to his father. During the trip the boy comes to feel loved by Murphy and the others, so he agrees to keep their secret to himself.