Episode 7a: Enemy In-Law: aired: Fri, Oct 14, 2005
Plankton falls in love with Mr.Krab's mom, and they go on a date. Mr.Krabs thinks that Plankton is just trying to steal the secret formula, so he tries to stop his mom. In the end, Mrs.Krab's mom does not want to marry Plankton, so they do not get married.