When a bomb explodes at a protest rally killing five people, 城堡 & Beckett realize the key to solving the case is to reconstruct the 47 秒 prior to the explosion.
A crime scene, but no body, The investigation leads to life-extension science, high-tech researcher, and a sleazy porn mogul who invested in a modern-day “fountain of youth.” Meanwhile, Alexis finds out whether she got into Stanford.
When an ex-con is mysteriously slain in an alley, 城堡 and Beckett believe a vigilante is behind the murder. But efforts to identify their suspect are thwarted when they discover that he roams the city in a Superhero costume
Detective Beckett fights for her life as 城堡 , plagued 由 guilt over his role in the events, struggles to uncover who's behind her brutal shooting. Ryan and Esposito have to adjust, as Victoria Gates becomes the precinct's new Captain