The new Director of Homeland Security reunites the team when a nuclear powered Russian satellite is knocked out of orbit and must be diverted before it detonates over Southern California.
Ben Sherman is about to complete Phase 2 of his rookie year. During Phase 3, he will be allowed to patrol solo. Detective Adams and Officer Brown are assigned new partners. Rene Cordero, Adams's new partner, is obsessed with receiving glory and press coverage. Their first case involves the search for an elderly man who left his home accompanied by an unknown black man. Brown's new partner, "Slug" Ferguson, quickly demonstrates how he earned that nickname when he starts a riot during a traffic stop. Meanwhile, Detectives Moretta and Bryant investigate a "Sonora shootout" involving a young Mexican man shot dead while driving an unregistered Bentley.
Netflix提前宣布续订《女子监狱》（Orange Is The New Black）第三季13集，此时距离第二季播出（6月6日）还有整整一个月！
《美国谍梦》已被续订到第六季，但是第六季将会是剧终季。第六季10集，2018年播出。
NBC宣布续订《黑名单》第五季。
NBC宣布续订《芝加哥急救》第三季。
在第四季中，Noah、Helen、Alison和Cole远离了彼此，生活在自己的圈子中。想当初他们的命运是如此纠缠，现在他们却日渐疏远。每个角色都有了新的爱情，但他们都面临艰难的抉择：他们是否已经做好了彻底忘记过去的准备？在新的开始和悲剧的结局之间，他们是否还有获得救赎和原谅的可能？Sanaa Lathan本季扮演Noah工作的特效学校的校长Jenelle，为人非常冷酷。学校的管理层和教职员工都对她不满，每件事都在和她作对。Ramon Rodriguez扮演海军陆战队退伍老兵Ben，目前为退伍军人健康管理局工作。他有一定程度的创伤后应激障碍症，担任悲伤心理治疗师的Alison很快和他有了交集。Russell Hornsby、Christopher Meyer、Amy Irving和Phoebe Tonkin在第四季中客座演出。
