The Abducted (2010)

In the parallel universe, Olivia has to deal with a serial kidnapper known as the "Candyman", who kidnaps children then releases them a few days later, but released with severe health problems after draining the hormones from their pituitary glands, which the Candyman uses to maintain his youth. With the help of Broyles' son, who was a victim, Olivia ultimately finds a kidnapped child and kills the Candyman, while Broyles kills a former physician-turned-priest who is in league with the Candyman, after he returns to kill his son. Broyles later discovers that Olivia has recovered her identity, but lets her go after realizing Walternate intends to kill her. Olivia enlists the help of Henry to send her to Liberty Island then break into the facility. Olivia is able to return back to her universe, but is later pulled back by Walternate. However, Olivia returned long enough to tell a cleaning lady to warn Peter she is trapped in the parallel universe.