David, Snow and Regina work together to neutralize the threat of a mysterious new arrival; Belle turns to Hook for help hiding from Mr. Gold; Emma resumes her therapy sessions.
Dalton and MacGyver search for Dalton's natural mother, on the run from the government, a bounty hunter and her ex-boss.
The sliders land on an Earth where San Francisco has been turned into an ice world by a natural disaster.
MacGyver is kidnapped and drawn into a dangerous plan to destroy the hidden papers of the late Romanian dictator Ceausescu.
