Here's the full episode of Season 12, Episode 6 of Family Guy, Life of Brian!

Plot: When Stewie and Brian travel back to 17th Century Jamestown, via Stewie's time machine, they encounter too many close calls with altering the course of mankind. Stewie decides to destroy his time machine, but immediately regrets his decision when an unthinkable event happens, and he is unable to go back in time.