Mermaidman and Barnacleboy travel back in time and encounter the duo that destroyed their lives. Guess who? Looks like they'll have to go a little further back to make it to the present in tact! Then check out "Mermaidman and Barnacleboy - The Lost Episode," attend the Cheapest Crab Convention, meet the Krusty Krab's newest employee, and more. Creatures of the deep, assemble! And get ready to laugh your scales off!