"Mr. Airplane" is the 47th of Mr. Young overall, and the 21 episode of the second season.
When Adam coaches the Engineering Squad in a paper airplane competition, he discovers that Slab is a master paper aeroplane builder and recruits him.
When Adam coaches the Engineering Squad in a paper airplane competition he finds that Slab is a master at it and recruits him. Meanwhile, Ivy is trying to look ugly so that the nerds will want to "obtain" her after learning that nerds are tomorrow's rich men.