One of the most memorable trials of Season 12 was the M4B patched challenge, which aired on September 14, 2020. In this trial, contestant Gus Thomasson was tasked with collecting food for his fellow campmates. The twist was that Gus had to don a M4B patch, which made him a target for the show's notorious "bus" – a vehicle that would periodically drive through the jungle, spraying contestants with water and testing their agility.