This is the episode called, "There's Something About Rene" where Trudy was very stressed out from the chaos her family caused and decided to hire a nanny to keep them under control while she's gone on a trip. After a series of disappointing and failed interviews, a gorgeous young woman named Rene showed up as Oscar and the family are instantly won over, but Trudy was cautious and skeptical. Regardless, she hired Rene and leaves for her trip but after returning home, she found out her family doesn't know her as they are doing fine and more calmer but too calm which leading Trudy on trying to get rid of Rene.
GIFs