When Chuck, Sarah, Casey, and Morgan are tasked to stop Dr. Stanley Wheelright from releasing a nightmare inducing toxin, they're also lead to question the allegiances of Chuck's mom. Meanwhile, Jeff and Lester use their unique sensibilities to celebrate Halloween at the Buy More, and Ellie and Awesome get a visit from Dr. Honey Woodcomb.

Afraid that his latest setback is driving a wedge between him and Sarah, Chuck resolves to prove himself by going on a dangerous mission with the overeager Agent Rye. Meanwhile, Morgan and Casey scramble as the "Buy Morons" attempt to uncover the true identity of Greta.