Still in prison, Oliver faces his biggest challenge yet. Meanwhile, Felicity gets an intriguing offer, and Diggle asks Curtis to go undercover for ARGUS.
Bull and the TAC team help one of their own when Marissa’s restaurateur husband, Greg, is charged with involuntary manslaughter after one of his employees dies in a kitchen fire allegedly caused by negligence. During voire dire, Bull and Benny aim to select jurors who will believe the fire was an accident and not a pattern of irresponsible management.
When the magical Time Seismograph goes off, the team finds themselves headed to the Salem witch trials. Sara notices that Zari is taking this case personally when she promises to save a mom, who is being accused of being a witch. However, the team quickly learns that there is a magical creature in the town creating problems they hadn’t been expecting. Meanwhile, Nate and Ava work together to try to keep their Time Bureau funding by proving to them that magic exists.
When a patient suffering from anorexia can’t gain the necessary weight needed to survive heart surgery, Claire suggests they perform an experimental surgery which Melendez strongly opposes. Shaun worries Glassman’s refusal to walk the hospital floor will keep him from being discharged and tries to persuade him to ambulate. Meanwhile, Shaun and Lea change the terms of their current relationship.
The coaches enlist iconic superstar Mariah Carey to serve as Key Advisor on the first night of Knockouts, when the coaches pair their artists to perform solo, then select just one of them to move on to the Playoffs.