Episode 5 - S4.E5

The gang sell a car but keep a spare set of keys to steal it back (The Boomerang); install a fake cash machine to duplicate the cards and PINs of unsuspecting passers-by (The Cash Machine Con); win a proposition bet involving listing words without the letters A, B, C, J, K and M; go undercover as recruitment consultants but the only thing they're making a career out of is identity theft (The Recruitment Scam); and demonstrate electronic devices to help beat the casino (Casino Gambling Devices).