Hostages

When Ellen disobeys Duncan's orders to assassinate the President during surgery, he tells her it will cost her a family member's life.

Duncan threatens Ellen that she must convince the President to keep her on as his surgeon after he decides to go with another doctor, or there will be consequences.

Ellen and Brian devise a plan with their kids to escape from Duncan.

Ellen has to make another life-changing choice when she performs emergency surgery in her own home.

When Ellen's sister, Lauren, shows up unexpectedly at their house intending to stay, Duncan forces Ellen to get rid of her without making it look suspicious.

Ellen and Brian agree that they need to take down Duncan to have any chance of escaping, so she sneaks away to see a man who has previously helped her solve problems.

Ellen must decide whether to save Duncan's life, and later decides to confront his wife.

When investigators get closer to discovering the conspiracy to kill the President, Duncan is ordered to get rid of an insider by someone very connected to the plot.

After a member of the President's staff is murdered, Ellen urges Duncan to back out of the assassination plot.

Duncan locks the Sanders family in a room for the day while he and his team head to New York City to eliminate the sniper team targeting President Kincaid.

When Brian goes to the police to expose Duncan and his team, he decides against telling the truth after Burton shows up and shows him evidence of Ellen and Duncan getting close.

Ellen reveals to Duncan that she will not kill the President but will help him get what he needs, as long as he gives her something in return.

In the first part of the two-hour finale, after Duncan discovers Sandrine's betrayal, he decides to use her to save Nina and Sawyer.

Concluding the two-hour finale, after Duncan discovers Sandrine's betrayal, he decides to use her to save Nina and Sawyer.