When a dead body is found at an ancient burial site that is thought to be cursed, the team tries to determine the motive and the symbolism behind the crime. Also, as Torres continues therapy with Dr. Grace, he discovers that their lives are in danger.
Shaun and Lea’s long-awaited wedding reception is interrupted by a violent attack at the hospital and the entire team must mobilize to save the victims. Meanwhile, the trauma of seeing people he cares for in life-threatening situations is affecting Shaun in more ways than one.