When Billy's parents leave for their second honey moon, Billy is left alone at the worst possible moment, since he has invited Principal Goodvibes over to dinner so he can recommend him into Rollington Academy for the Gifted. Then, Billy's dad suggest Billy to use Eris, the goddess of chaos, and Hoss Delgado, spectral exterminator, as his substitute parents during the dinner. Naturally, the dinner is a disaster with Delgado terrorizing Goodvibes, and Eris unleashing giant alien zombie lobsters. In the end, Goodvibes forcefully recommends Billy into Rollington Academy which, as it turns out, is actually a military school.
click here to see where to watch or .
Ready to Watch The Grim Adventures of Billy and Mandy, Season 5, Episode 3?