When Zo'or (Anita La Selva) experiences a series of violent dreams and has difficulty maintaining his human appearance, Da'an (Leni Parker) realizes that Zo'or is entering the Taelon reproductive cycle, the ka'ath'am. Believing that Zo'or is a threat to himself and those around him, Da'an suggests that he withdraw from all public appearances, but Zo'or refuses. Later, Liam Kincaid (Robert Leeshock) and Sandoval (Von Flores) escort Da'an and Zo'or to the Palmer mansion to participate in an Energy Sharing Ceremony with a group of women known as The Cloister. These unique women can alter their bodies' energy to match the Taelons' energy level, allowing them to physically and spiritually bond with the Taelons.

Later, Renee (Jayne Heitmeyer) joins Liam at the mansion and recognizes Sister Elizabeth (Danielle Brett), an ex-Resistance member, and fears that she has divulged Resistance secrets to The Cloister and the Taelons. Liam questions the head of The Cloister, Sister Margaret (Marina Sirtis), about Sister Elizabeth's background and Renee questions Sister Elizabeth about her motives for entering The Cloister. Later, Sister Margaret finds Sister Elizabeth dead and floating in a meditation water tank. Forensic Officer Eric "Rabbit" Salinger (James Key) concludes that she died from drowning and electrocution by an unknown energy source. Suddenly, the Interdimensional Shuttle explodes and destroys the mansion's electric generator and all means of transportation. Liam observes Da'an leaving the scene of the explosion, but Da'an refuses to offer Liam any explanations as to why he was there.

Later, Zo'or sees a series of violent images of Sister Elizabeth's murder while being questioned by Metro Homicide Detective Mitch Corelli (Bill MacDonald). Meanwhile, Sandoval catches Renee in the act of searching Sister Elizabeth's room, but she covers herself by stating her concern about the murder and its impact on Doors International. Sandoval has already searched the room and found Elizabeth's diary, which contains information about her previous ties to the Resistance. He reveals this to Renee, confirming her suspicion that Sandoval had beaten her to the diary.

"Rabbit" informs Liam that Sister Elizabeth was pregnant, but their discussion is interrupted when another Cloister member, Sister Jenna (Karen Glave), is attacked. She identifies her attacker as a Taelon, but can't say whether it was Da'an or Zo'or. Liam learns from Sister Margaret that every woman in The Cloister, except for her, is pregnant.

" Rabbit" and Liam eliminate the possibility of any non-Taelon energy source as the cause of the deaths and attempt to identify the killer by isolating Taelon energy signatures. They watch the tape of the ceremony and determine that Da'an must be the killer because he was the last Taelon to touch Sister Elizabeth. But after replaying the tape frame by frame, Liam notices that Sister Margaret transformed into a Taelon blue state after touching Zo'or. Suddenly, a piercing scream sends Liam running to the meditation room to find Sister Margaret, glowing Taelon blue, attacking Renee. Liam restrains Sister Margaret and she begins to emanate energy pulses, slowly killing herself. Before she dies, Sister Margaret confesses to murdering Sisters Elizabeth in a jealous rage because she could not procreate.

Liam theorizes that Sister Margaret must have shared a special link with Zo'or because of the way she channeled his energy. Liam also calls attention to Da'an's strange behavior and suspects him of tampering with evidence to cover up for Zo'or, but Da'an deflects the accusations. Back on the mothership, Da'an reprimands Zo'or for his total disregard for public safety and Taelon interests while experiencing the ka'ath'am. But Zo'or is more concerned with the fact that he is the only Taelon who will never reproduce. Zo'or, the last of the Taelons, demands to know why Da'an concealed the truth. He figures that Da'an wanted to keep the secret that without humanity, the Taelons are a doomed race. But Da'an insists that he only wanted to protect his child, who is none other than Zo'or!

This episode synopsis was originally produced by The Official E:FC Website and remains the property of Tribune Entertainment.