|Spies, Lies & Allies|
|Season Run||August 11, 2021|
Spies, Lies & Allies is the 37th season of The Challenge. This season features 17 American contestants competing with 17 international reality stars in a spy-themed game for a million dollars. This season was filmed in Croatia from April to June 2021.
A launch special titled, The Challenge Spies, Lies & Allies: Global Activation, aired on Monday, August 9.
From Croatia, 17 American players battle it out against 17 international competitors in cutthroat challenges and brutal eliminations for a share of the $1 million prize.
Each team will compete in numerous challenges, followed by elimination rounds known as "The Lair." The winners of the Challenge will form the Agency and will be immune from the Lair. The rest of the house will be given 20 minutes to discuss and vote simultaneously, and as individuals, one team into the Lair. At the Lair, the Agency will vote in one male and one female, regardless of whether or not they are a pair, to compete against the nominated team. The Agency's selections will compete as a pair. The winning pair will remain in the game, and the losers will be eliminated from the game.
- Team Selection: Before competing in the Opening Mission, the International players were given files on their potential American partners. Then, they will race to free the player they wanted to be partners with at the "Compromised" challenge.
- Infiltration: Returning from Double Agents, the winners of the elimination round can either remain as a team, return to their original partners, or select any available player from any team to be their partner. Teams will then form based on the players remaining.
|Episode||The Agency||Compromised Agents||Lair game||Lair outcome|
|#||Mission||Voted In||Winner's pick||Winners||Losers|
|1||Compromised||Aneesa & Logan||Michaela & Renan||Corey L.||Back Me Up||Corey L. & Michele||Michaela & Renan|
|2||Heli Heist||Esther & Fessy||Kelz & Tracy||Ed||Flipping Agents||Ed & Emy||Kelz & Tracy|
|3||Sea Cave Recon||Ed & Tori||Berna||Slipping Up||Berna||Tacha|
|4||Undercover Comms||Esther & Fessy||Corey L. & Michele||Hughie||Down to the Wire||Amber & Hughie||Corey L. & Michele|
|5||Mindfield||Berna & CT||Gabo||Higher Assets||Logan||Gabo|
|6/7||Turning Agents||Emanuel & Kaycee||Hall Brawl|
- During the first few days of filming, a cast or crew member tested positive for COVID-19, causing the cast to enter a 10 day quarantine period. The entire cast returned to the game with negative tests, excluding Nam. TJ announced at the Lair that Nam unexpectedly withdrew from the game due to unknown reasons. He was replaced by Ed.
- Due to unknown reasons, Lauren was disqualified from the competition prior to the "Heli Heist" challenge. Amber came in as her replacement.
- Tommy was medically disqualified from the competition due to suffering a concussion during the "Sea Cave Recon" challenge. He did not vote at nominations, and only the women were required to compete in the Lair as a result.
- Aneesa was medically disqualified from the competition after a shoulder injury during the "Minefield" challenge. Because her and Logan were voted in, the elimination only required the men to compete.
- The contestant won the Final Mission.
- The contestant lost the Final Mission.
- The contestant won the mission and was a part of the Agency.
- The contestant was not selected for elimination.
- The contestant was selected for the Lair but did not have to compete.
- The contestant won in the Lair.
- The contestant was eliminated in the Lair.
- The contestant was medically disqualified from the competition.
- The contestant was disqualified from the competition.
|Amanda||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Amber||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Ashley||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Berna||Michaela & Renan||Kelz & Tracy||Big T & Tommy||Corey L. & Michele||Gabo|
|Bettina||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Big T||Michaela & Renan||Kelz & Tracy||Big T & Tommy||Corey L. & Michele||Emy & Gabo|
|Cory||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|CT||Michaela & Renan||Aneesa & Logan||Jeremiah & Tacha||Corey L. & Michele||Gabo|
|Devin||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Ed||Ashley & Hughie||Berna||Corey L.||Corey L. & Michele||Aneesa & Logan|
|Emanuel||Michaela & Renan||Emanuel & Kaycee||Jeremah & Tacha||Big T & Jeremiah||Aneesa & Logan||TBD||TBD|
|Emy||Michaela & Renan||Ashley & Hughie||Jeremiah & Tacha||Big T & Jeremiah||Aneesa & Logan|
|Esther||Michaela & Renan||Ed||Emy||Corey L. & Michele||Amber||Hughie||Aneesa & Logan|
|Fessy||Michaela & Renan||Ed||Emy||Esther & Fessy||Amber||Hughie||Aneesa & Logan|
|Hughie||Michaela & Renan||Kelz & Tracy||Ashley & Hughie||Ashley & Hughie||Aneesa & Logan|
|Jeremiah||Michaela & Renan||Aneesa & Logan||Aneesa & Logan||Corey L. & Michele||Aneesa & Logan|
|Josh||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Big T & Jeremiah||Aneesa & Logan|
|Kaycee||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan||TBD||TBD|
|Kyle||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Logan||Corey L.||Michele||Kelz & Tracy||Ashley & Hughie||Ashley & Hughie||Emy & Gabo|
|Nany||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Nelson||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Priscilla||Michaela & Renan||Ed & Emy||Amber & Josh||Corey L. & Michele||Aneesa & Logan|
|Tori||Michaela & Renan||Ed & Emy||Berna||Corey L.||Corey L. & Michele||Aneesa & Logan|
|Gabo||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele||Aneesa & Logan|
|Aneesa||Corey L.||Michele||Kelz & Tracy||Jeremiah & Tacha||Corey L. & Michele|
|Corey L.||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Devin & Emy|
|Michele||Michaela & Renan||Kelz & Tracy||Jeremiah & Tacha||Aneesa & Logan|
|Tacha||Michaela & Renan||Devin & Michele||Corey L. & Michele|
|Tommy||Michaela & Renan||Aneesa & Logan|
|Kelz||Michaela & Renan||Amber & Josh|
|Tracy||Michaela & Renan||Ed & Emy|
|Lauren||Michaela & Renan|
|Michaela||Corey L. & Emy|
|Renan||Josh & Lauren|
|Episode||Air date||Viewers (in millions)|
|1||"The List"||August 11, 2021||0.66|
|2||"Bertha"||August 18, 2021||0.62|
|3||"Truce or Dare"||August 25, 2021||0.51|
|4||"Messy"||September 1, 2021||0.50|
|5||"Good Vibes and Gladiator"||September 8, 2021||0.59|
|6||"Alien"||September 15, 2021||0.71|
- Amber Borzotra, Ed Eason, Liv Jawando, and Mark Byron (Shipwrecked: Battle of the Islands) all flew out to Croatia to be alternates in case anyone was to be disqualified. Amber and Ed both arrived as replacements, but Liv and Mark were sent home after being unused.
|The Challenge Seasons|
Road Rules: All Stars • Real World/Road Rules Challenge • Challenge 2000 • Extreme Challenge • Battle of the Seasons (2002) • Battle of the Sexes • The Gauntlet • The Inferno • Battle of the Sexes 2 • The Inferno II • The Gauntlet 2 • Fresh Meat • The Duel • The Inferno 3 • The Gauntlet III • The Island • The Duel II • The Ruins • Fresh Meat II • Cutthroat • Rivals • Battle of the Exes • Battle of the Seasons (2012) • Rivals II • Free Agents • Battle of the Exes II • Battle of the Bloodlines • Rivals III • Invasion of the Champions • XXX: Dirty 30 • Vendettas • Final Reckoning • War of the Worlds • War of the Worlds 2 • Total Madness • Double Agents • Spies, Lies & Allies