: Inside Peter, Stewie encounters Bertram , a sperm cell who is just as diabolically clever as he is. They briefly bond over their shared desire to kill Lois before Stewie must escape through Peter's tear duct.
The Family Guy episode you are referring to is Season 3, Episode 11, titled . It first aired on November 8, 2001. Episode Plot Summary Watch www xrysoi se Family Guy S03E11
: Stewie eventually shrinks himself and a small spaceship to enter Peter's body to destroy his sperm cells. : Inside Peter, Stewie encounters Bertram , a