Don’t miss the British premiere of “420″ tonight at 10:00pm on BBC Three. Contrary to this post, “Stew-Roids” aired tonight on BBC Three instead. The reasons for skipping “420″ in the schedule are unknown, but it is likely due to censorship issues.

After Brian gets thrown in the slammer for drug possession, he launches a campaign to legalize marijuana. Mayor West passes the law, and the whole town goes to pot.