Summary: Lizzie feels that Nigel (Numbuh 1) works too much during lunch, so she forces him to have lunch with her, but he can't work. Meanwhile, a group of lunch thieves and their leader Robin Food (a parody of Robin Hood) break into the cafeteria and start stealing everybody's lunches, including Lizzie and Nigel's. Nigel starts to fight but Lizzie reminds him that he is not suppose to fight, and Lizzie takes matters into her own hands by telling Nigel to stay put and going into Nigel's locker and transforming it into a combat machine called L.O.C.K.A.H.S.O.C.K.A.H.