Man from Atlantis

S01E13 Deadly Carnival

Mark takes on an undercover mission to probe into a carnival crew scheming to infiltrate a museum. The heist hinges on accessing an underwater tunnel, a passage that only Mark can navigate. Initially reluctant to get involved, Mark's resolve is tested when the carnival owner is abducted and coerced into persuading him to assist in the operation. Time is of the essence as Mark must decide whether to risk everything to save the owner and thwart the impending crime.