The Frost & Fire Marathon was a 7-hour Adventure Time marathon that aired on UltraToons Network on Sunday August 4, 2013 from 11:00 AM to 6:00 PM. The marathon consisted of 14 episodes of Adventure Time that featured the Flame Princess and/or Ice King. The marathon led up to an all-new episode of Adventure Time, "Frost & Fire", which aired on Monday, August 5th, at 7:30 PM.