Ferry Tale - S5-E7
Plot hole: The cops storm the ferry and recapture the 4 prisoners, only to quickly discover that two convicts swapped places with passengers and escaped on a medical boat. This boat powers off and we're later told "by the time we caught up with the boat they'd made their escape", but there's just no way that's possible. They had barely a minute's head start, in wide open water, with multiple high speed police boats in range/sight of them the whole time.