A series of fire drills leads Veronica to discover that Neptune High has been receiving bomb threats, so she enlists Wallace and Mac's help to investigate classmates who could pose a serious threat to the school, including new student Ben. Meanwhile... (more), Keith stuns Veronica with the news of who he's been secretly dating. Later, Duncan confronts Veronica about her ongoing investigation into his sister's death.

Alicia R. Cole, Alona Tal, Anneka Nishijima, Duane Daniels, Erica Gimpel, Joey Lauren Adams, Jonathan Chesner, Jonathan Taylor Thomas, Linda Castro, Max Greenfield, Michael McMillian, Theo Rossi, Tina Majorino