As time runs out on a bomb designed to destroy the cave and the rest of the Greenhouse, the students in the gym must get past police to make a rescue. ...

While Daniel and Alex stall for time at the basketball game, Hayley sneaks into the cave and Max gets help from an unexpected ally. ...

When Hayley tells her brother and friends the big news, they argue over whether to take action. Max and Jackie are caught trying to contact Emma. ...

Leo awakens in the cave. During dinner with their parents, Brooke and Daniel carry out a plan to get Emma's white knight chess pieces from Jason. ...

Brooke tells Daniel and Hayley the last things she can remember before being hypnotized. Marcus makes a decision that stuns Louis and infuriates Judy. ...

Hayley and Daniel attempt to dehypnotize Brooke. Max and Jackie starts to see a common thread behind all the strange events surrounding Emma. ...

After catching his mom in lie, Daniel compares notes with Hayley. Aspen makes a slip that shocks Leo. Jackie is tricked into confessing a past misdeed. ...

Sophie finds herself shunned by all the Eagles, except for one. Daniel gets a hunch as to who might be influencing Brooke's recent behavior. ...

Under the sea, Hayley experiences something that changes how she thinks about her mom. Believing the world is ending, Parker blurts out a confession. ...

When Aspen's jealousy gets the better of her, Leo tells her they need to talk. Judy and Marcus trigger a test quake and get unexpected results. ...

During a quiz game, know-it-all Aspen grates on Hayley's nerves and Brooke suffers a strange lapse in memory. Max misses Emma and tries calling her. ...

Flashbacks reveal a discovery that teenage Ryan made at the greenhouse and an order given shortly before the Athena launch. Brooke is led into a trap. ...

The Ravens reflect on the events from the dance as they clean. Social dynamics begin to change within both the Eagles and Ravens houses. Brooke and Alex reach a conclusio ...

Eric reads Ryan's letter to Carter, which reveals information about the secret mission. Meanwhile, the Greenhouse students prepare for and attend their Back to the Future ...

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