Description:

Think Tank takes place on a remote fish tank where a submarine is stuck, Its Captain, Captain Bob, greets the viewers and expresses his desire of wanting to travel to his beautiful home in Jamaican, but can't do so because he's stuck. He later clarifies to the viewers that there's nothing to worry about, then enters his submarine. While Ghost City is playing, the tank starts getting filled up. 

Captain Bob explains that you need to find what 3 things got in common.