Three years ago, in the quaint town of Truth or Consequences, a meteor crashed into a community in New Mexico, releasing an unknown parasite. A handful of Tom Clancy's Rainbow Six Siege Operators teamed up and apparently contained the mysterious parasite during the initial outbreak.
Unexpectedly, the Chimera parasite has suddenly reappeared in multiple locations across the United States, deadlier than ever and spreading rapidly. To monitor the parasite and prepare for any future threats, the Rainbow Exogenous Analysis & Containment Team (REACT), a highly specialized and equipped organization led by Eliza "Ash" Cohen, Dr. Elena "Mira" Álvarez and Jordan "Thermite" Trace , has been created.
Almost nothing is known of the parasite's evolution, and REACT's hand-selected operators are the only ones able to engage, fend off, and learn more about this deadly new threat. Your mission is to confront the mysterious creatures, known as Archæns, who are now deadlier than ever.
Deploying to Containment Zones with the right mix of gadgets, gear, and teamwork will be integral to gathering the information needed to stop them. With each foray, you'll be faced with the difficult choice of pushing deeper or mining while hoping to prevent your team's operators from going MIA.
Prepare to embark on exciting, challenging, and often unpredictable missions as you and your team risk everything together every time you enter the Containment Zone.
