C.I.D. - Season 1 Episode 1189 : Shark Ka Hamla

A treacherous friend Raunak invites his newly married friend Preet and his wife for a mid-sea boat ride only to get Preet killed by the sharks. Two years later when a fatal incident occurs at the same place while shark viewing supervised by a tourism company, CID gets involved in the case and solves both the cases by revealing the secret scarier than the shark.