At the Resistance lair, J Street (Melinda Deines) attempts to uncover the formula for Taelon core energy, when several electronic microbes called "nanobots" leap from her computer terminal onto her arm. She suddenly becomes aware that she has unknowingly been carrying a Taelon security implant, to which the nanobots are attracted. Street suspects Ronald Sandoval (Von Flores) must have given her the implant when he recently tried to force her and Augur to decipher Ma'el's ancient manuscript containing secrets about Taelon core energy.

Convinced the ingenious Street is the only one likely to ever figure out the secret to core energy, Zo'or (Anita La Selva) orders Sandoval to bring Street to the Taelon Mothership. Street is able to elude Sandoval long enough to alert Renee Palmer (Jayne Heitmeyer) about the nanobots. Wrapping her arm in an ice pack to temporarily deactivate the nanobots, she tells Renee they are capable of a video link, allowing Sandoval to watch her every move, and by association, the Resistance. Her only choice is to stay away from Renee and Liam Kincaid (Robert Leeshock). She sets off again on her own, but is suddenly cornered in an alley by Sandoval's FBI henchman, Tate (Richard Zeppieri). She shoots Tate, fatally wounding him, and runs. Sandoval gives up the chase to come to Tate's aid, but it's too late.

Street returns to her trailer home, where she finds Liam. He offers to take her to the Taelon Embassy, where Da'an (Leni Parker) could administer an "energy cleanse" that would flush the nanobots out of her system. But when a Taelon rover passes overhead, Street is spooked, mistakenly suspecting Liam of trying to stall long enough for Sandoval and his storm troopers to catch her. She flees to an abandoned warehouse, but is found by Sandoval. Just as he is about to apprehend her, Liam steps out of the shadows and knocks him out.

Street and Liam return to the lair where Renee is waiting. As Sandoval tracks them to their doorstep, Liam desperately contacts Da'an, who agrees to flush the nanobots out of Street. While Renee goes outside to try to delay Sandoval, Liam and Street travel by portal to the embassy. But Street realizes she has been betrayed when Da'an greets her along with Zo'or, who tells her that in order to help her solve the core energy formula more quickly, they will provide mental stimulus-more commonly known as a mind probe. Liam helps Street escape to a portal-but not before he is shot by security guards.

Street arrives at a portal station near the lair, where she is again pursued by Sandoval. She makes her way to Doors International, seeking help from Renee. Sandoval and his men burst into Renee's office and take both women into custody. Street is taken back to the Taelon Embassy, where she learns Liam has been charged with treason and has been sentenced to death. To make matters worse, she has been scheduled for a mind probe. Frustrated, she leaps through a portal, ending what has merely been a computer simulation of a worst case scenario-one depicting what might have happened if she didn't trust Liam and Renee to help her deal with the nanobots.

Sandoval and Tate's original pursuit starts anew-this time for real. Better prepared, Street is able to overpower Tate without shooting him. She returns to the lair, where Liam and Renee decide to try to flush out the nanobots with a sample of core energy. The only catch is that they must somehow smuggle it off the Mothership. Liam, Street and Renee visit the Mothership, where Street again faces a mind probe. This time, Liam is able to thwart the security guards and sends Street and Renee to a medical bay where Renee tries to flush out the nanobots. She is successful.

To ensure Street's safety in the future, Renee places a vial containing the nanobots in a shuttle craft. Tracking the nanobots, Sandoval assumes that Street is onboard the shuttle, which hurtles on a collision course with the Mothership. Sandoval has no choice but to open fire on the craft, obliterating it. Unbeknownst to him and the Taelons, Street safely speeds back to Earth in an escape pod.

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