When a bomb explodes at a protest rally killing five people, castello & Beckett realize the key to solving the case is to reconstruct the 47 secondi 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, castello 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 castello , plagued da 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