The Challenge S31:E4

All Stars Real World vs. Road Rules Challenge 2000 Extreme Challenge Battle of the Seasons Battle of the Sexes The Gauntlet The Inferno Battle of the Sexes II The Inferno II The Gauntlet II Fresh Meat The Duel The Inferno III The Gauntlet III The Island The Duel II The Ruins Fresh Meat II Cutthroat Rivals Battle of the Exes Battle of the Seasons Rivals 2 Free Agents Battle of the Exes II Battle of the Bloodlines Rivals III Invasion of the Champions XXX: Dirty Thirty Vendettas Final Reckoning War of the Worlds War of the Worlds 2 Total Madness Double Agents Spies, Lies and Allies Ride or Dies Battle for a New Champion Battle of the Eras Vets and New Threats Cutthroat