 Waldo s fragile self-esteem takes a huge hit when a misunderstanding he caused results in Eddie s girlfriend leaving him. Waldo decides the only way he can cope is to join the Army Reserves. Urkel finds out and insists that Eddie go look for him and apologize before Waldo makes a big mistake. Of course, Urkel, Eddie and Waldo wind up causing a whole lot of hijinks and get on the wrong side of a tough drill sergeant before they can talk things out. Meanwhile, Carl and Harriette deal with a shady repairman.