SpongeBob SquarePants Season 4 Episode 1 Fear of a Krabby Patty - Shell of a Man >Mr. Krabs is going to a Naval reunion, but he moults his shell right before the event. So SpongeBob attempts to impersonate Mr. Krabs by wearing the recently molted shell. At the reunion, everything is going well, until SpongeBob has to fight one of Mr. Krabs' buddies and the shell breaks in the process. The real Mr. Krabs comes out and tells the truth, but to the surprise of him and SpongeBob, Mr. Krabs' old buddies had secrets to hide themselves.