Black Jack
A Dolphin and a Gang of Robbers
S1 E38:
Black Jack is kidnapped as he is arriving home and wakes up on a boat in the ocean. He is forced to operate on a gang member who had been severely injured during an armored car heist. Black Jack warns that the wounded man, a brother of one of the gang members, needs a blood transfusion, but the gang insists they will escape into international waters.