Valkyrie Drive: Mermaid (2015)

S02E14 Death Boat

After undergoing plastic surgery, a jewel thief embarks on a cruise to recuperate. Colt and insurance investigator Kay Faulkner decide to join the cruise, bringing along Howie and Jody, who are disguised as an invalid and his nurse. Their mission is to uncover the identity of the thief before it's too late.