whale V.S. shark who will win?

I am Harold. I have a very long name so you can call me jack.

Anyway, let’s get back to the story. Right now, I am in the middle of a shoot out with my best friend, Fred the cactus. we are fighting against jimmy the bull shark. he is trying to steal a hyperspeed engine so he can achieve global domination. We are the engine’s guards and we’re in trouble because jimmy has a grenade launcher and the grenades are mini NUKES so that was a bit of a problem. But what he DIDN’T know was that we were smart and the REAL engine is 600 feet underground in a vault that is 7 meters thick on every side.