Brock goes on a wilderness retreat, and gets more than he bargained for when he encounters the Army searching for something. Meanwhile, the Venture family retreats to the panic room when the forces of both The Monarch and Baron Ünderbheit attack.

The boys discover a dangerous pod in the lab that projects your fantasies, thus trapping you inside. Dr. Byron Orpheus is introduced as well as his daughter, Trianna, whom Dean becomes enamored with immediately.