Warehouse 13 S01E02 Resonance

Pete and Myka are sent to Chicago to investigate a series of odd bank robberies. During their investigation, they have a run-in with Bonnie Belski, a persistent FBI agent looking for a logical explanation for the happenings. It seems the bank robbers are using a device that creates a sound resonance so severe, it sort of hypnotizes all who hear it and leaves them in a state of euphoria for minutes after. It's up to Myka and Pete to figure out where the robbers will strike next and retrieve whatever bizarre object they are employing. Meanwhile, Artie examines a possible security breach back at the warehouse.