The group arrives in the Underworld and finds a dark counterpart to Storybrooke. While Regina deals with her mother--now the mayor of the other-Storybrooke--the others try to find Hook. In the past, Regina's father tries to convince her to turn from the path of vengeance before her soul is forfeit.moreless
Alex goes to Rome, Italy with a dangerous double mission, identify the contractor handling the multi-million dollar payments for Black Dagger and keep hidden his true mission from the CIA/FBI task force. Meanwhile, Katya provides help to her son from an old friend and Alex is surprised to learn details of his mother's past. While in Italy, Sam attempts to buy a cache of SVR intel from an Italian broker.moreless
Sidney agrees to lead Regina to the Snow Queen, and Emma insists on tagging along in the hopes of rekindling her friendship with Regina. Meanwhile, David and Mary Margaret interrupt their first date since the baby arrived to track down an escaped Will. In the past, Emma befriends a fellow orphan, Lily, but learns that she's not what she claims.moreless
While Elsa wanders Storyrbooke and inadvertenyl summons a snowman to protect herself, Regina comes up with a new plan to assure that she finally has a happy ending in her life. Meanwhile, in the past, Anna and Elsa learn why their parents left Storybrooke and set out to find out where they've gone.moreless
Priscilla fights her way back to reality with the help of Aaron and Rachel. Trueman's atrocities escalate as he tries to stop the resistance. Bass and Miles kidnap the President.
With his wife and son now dead, Neville joins with Bass to seek his revenge on the patriots. Rachel finds out about Priscilla, and Miles and Charlie pinch a steam train.
Charlie finds Miles and Truman gets his shot to get Miles and Bass.
Miles gets injured fighting off a bunch of Sheriffs and then gets inadvertently trapped in a dilapidated building making his way back to camp. Tom kidnaps Charlie and discovers the truth about Jason.moreless
After receiving inside information from Jason, Miles and Monroe head to Austin to try and sabotage the Patriots' plans. Aaron becomes concerned over Priscilla's odd behavior.
Monroe makes a jolting attack on the Patriots while Gene and Miles look for potential allies in Willoughby. Neville and Jason find themselves in deep water when Doyle finds out about the poison. Aaron and Priscilla press onward.moreless
The town of Willoughby has been turned into a reeducation facility, and Doyle makes things difficult for Tom.
Aaron awakes from slumber to find himself back in his previous life, in a world with power. Something however, is not quite right.
Connor and Monroe are forced to fight to the death.
With his wife held captive, Tom is ordered be President Davis to hunt down and kill Monroe. Meanwhile, Monroe, Charlie and Miles head off on a risky mission to new Vegas, to hire some mercenaries from one of Monroe's previous, but dodgy acquaintances.moreless
Miles, Rachel and Bass kidnap Truman and infect him with typhus that the Patriots have engineering to persuade him to give up the location of the antidote.
Monroe has to make a choice about his son, while Neville and Julia continue to take things carefully, which annoys Jason. Meanwhile, Gene shows Charlie an unexpected sight.
Miles, Monroe and Rachel head to Mexico to look for Miles' son.
After Pan tricks Henry into sacrificing his heart, Emma and the others must stop him from gaining absolute power. Meanwhile, in the past, Regina approaches Gold to get his help in adopting a child.moreless
Miles, Rachel and Charlie continue their search for Aaron.
Aaron's experience with death attracts interest. Miles and his compatriots attempt to escape. Rachel and Gene's personal problems impact Charlie. Meanwhile, Neville takes his chances with the Patriots.
Rachel uncovers some worrying facts, and shares a moment of rapport with Charlie. Meanwhile, Neville and Jason continue to struggle with their relationship.
Monroe continues to be useful but is captured by The Patriots and sentenced to death.
Texas Ranger John Fry comes to town who may be the only man capable of taking down The Patriots.
Monroe saves Charlie from a potentially nasty encounter, but Charlie refuses to give him an inch of trust. Miles and Rachel start planning a resistance movement against the Patriots. Neville deals with a problem regarding his boss.moreless