Threatened by a doctor's kindness toward Tammy, Mark tries to get her an exotic animal, only to have his face ripped off by the newly purchased chimpanzee. Meanwhile, Hank bonds with the chimpanzee via its bluetooth, and David's dog saves David and Mernft Man from a pet snake.

When David, Andrea, Mark, and Tammy go on a cruise together, David and Andrea unexpectedly rekindle their romance. Mark's preoccupation with reeling in a big fish to outcompete Steve DelVecchio leads to him catching a whale that jeopardizes the safety of the entire cruise. Meanwhile, Hank goes on a date with a mermaid that goes awry when she reveals her distaste for hot dogs.

Mark puts his piloting skills to the test.

Mark throws his hat into the ring as an Ad Man after being shown up by a group of execs.