Sarah must step in to help when Mark is taken down in a Prolethean shoot-out. As Sarah collects intel putting her on the trail of the original Castor DNA, a familiar foe is not far behind. Helena continues to toil in a faraway military compound but it is ultimately Sarah’s fate that will hang in the balance as she tries to save her sister. Gracie is cast out from the Prolethean fold. Alison and Donnie come face-to-face with an unhappy drug lord.moreless
Julia learns the truth about her father after his unexpected death. Brackenreid takes over Murdoch's murder case involving a group of geniuses.
After earning bad reviews for Katie Atkins' newest book, Erica has problems moving on, so Dr. Tom sends her back to a different life after having made a different choice about her job.moreless
When Erica stumbles upon a secret at work and is unsure if she should tell anyone, Dr. Tom sends her back to high school where she learned about a friend's secret in order to develop an understanding of the kind of secrets that should be kept and which ones should be shared.moreless
When Julianne offers Erica to become the author of the new sex book herself, Dr. Tom sends her back to a summer in Taipei - a trip that she had never taken because of her fear of taking chances.moreless
When problems arise between Erica and Ryan, after Erica goes to a party with Ethan, while Ryan is supposedly away, Erica is sent back to relive an unusual love affair of her university days, in order to understand her feelings about Ryan in the present.moreless
Deciding that Erica might need a rest, Dr. Tom sends her back to relive a perfect day.
Once again, Erica is sent back to her university days, but this time to overcome her fear of confrontation.