Episode: 1x01 | Airdate: Oct 2, 2017
City prosecutor Reed Strucker discovers that his two teenage children Lauren and Andy are mutants... and that the government will stop at nothing to capture them. To save his children, Reed and his wife Caitlin must seek out the mutant underground and obtain their help.
Episode: 1x02 | Airdate: Oct 9, 2017
Clarice's powers run out of control, threatening the Mutant Underground. Meanwhile, Jace threatens Reed, Lorna deals with life in prison, and Caitlin helps Marcos get the medicine they need for Clarice.
Episode: 1x03 | Airdate: Oct 16, 2017
Reed has second thoughts about selling out the Mutant Underground to Sentinel Services. Meanwhile, Dreamer takes extreme measures to help Clarice focus her portal-generating power, and Caitlin turns to her brother for help.
Episode: 1x04 | Airdate: Oct 23, 2017
Marcos turns to a former girlfriend for information on the convoy that is taking Reed and Lorna to a secure facility. Meanwhile, John and the others plan a rescue, but things go amiss when it turns out that Jace has a mutant of his own.
Episode: 1x05 | Airdate: Oct 30, 2017
Lorna and Marcos capture Jace and interrogate him. Meanwhile, Reed offers to draw the police away to prove his loyalty to the mutant cause, while Caitlin, Lauren, and Andy try to save a dying mutant.
Episode: 1x06 | Airdate: Nov 6, 2017
When Clarice leaves the underground, Marcos and John come up with an alternate plan to break into the Federal building... involving Reed and Andy. Meanwhile, Caitlin objects when Lorna starts training Lauren in how to use her powers offensively, and Jace increases his efforts to hunt down the mutant undeground.
Episode: 1x07 | Airdate: Nov 13, 2017
Carmen calls in her "favor" with Marcos, who tries to hide it from Lorna. Meanwhile, Reed finds out about Wes' past, and Roderick introduces Jace to the Hounds.
Episode: 1x08 | Airdate: Nov 20, 2017
John and the others capture a spy who may know the location of Trask Industries. Meanwhile, Reed confronts his father Otto, who reveals the history of the Strucker family.
Episode: 1x09 | Airdate: Dec 4, 2017
Esme comes up with a plan to break into the Trask facility and rescue the prisoners, but it requires Andy and Lauren to go on a side mission that requires them to use their newfound joint power.
Episode: 1x10 | Airdate: Dec 11, 2017
Esme puts her own plan into effect, convincing the Struckers to ask Jace to transfer the prisoners at Trask. Meanwhile, Roderick tests the extent of Andy and Lauren's powers.
Episode: 1x11 | Airdate: Jan 1, 2018
The Frost triplets suggest to the Underground that they ally together, without revealing their connection to the Hellfire Club. Meanwhile, Lorna's powers continue to grow, and the Struckers prepare to leave the country.
Episode: 1x12 | Airdate: Jan 15, 2018
The Frost Triplets convince the Mutant Underground to help them abduct Roderick from a Humanity First Summit. Meanwhile, the Struckers track down Ellen when they discover that she may know who Otto was talking with about his X-Gene research.
Episode: 1x13 | Airdate: Jan 15, 2018
Jace and SS find the Underground HQ and launch an attack. Meanwhile, Lorna and Andy decide which side that they're on.
Episode: 2x01 | Airdate: Sep 25, 2018
Reeva Payge purges the Inner Circle of those who disagree with her, and she emerges as their sole leader. Six months later, the remaining members of the Mutant Underground have relocated to Washington, D.C., where Sentinel Services is being even more ruthless about tracking down mutants. Desperate for answers, Eclipse and Caitlin secretly meet with criminal hacker Wire to get info on the Inner Circle. Meanwhile, Polaris prepares for the birth of her baby. Worried that all might not go as planned, she makes a secret pact with Andy.
Episode: 2x02 | Airdate: Oct 2, 2018
Thunderbird contacts a mutant lawyer who recruited him to the Underground years ago, hoping she can help him find the Inner Circle. Lauren and Andy have a shared dream, which distracts Andy from his training and prompts Reeva to consider cutting her losses with him, which, in turn, makes Andy second-guess his separation from his sister. Meanwhile, Reed must keep a huge secret from the group and Jace picks up the mutants' trail again.
Episode: 2x03 | Airdate: Oct 9, 2018
Polaris' baby begins to suffer from a deadly illness, leaving the Inner Circle unable to heal her, and prompting them to turn to an unexpected source for help. Meanwhile, Reed and Lauren take an excursion to deliver illegal meds, but Reed's powers complicate their plans. Then, Thunderbird and Blink meet the leader of the Morlocks – a shadowy group of mutants that live underground – who offers to help them find the Inner Circle, but the two factions may not have the same goals
Episode: 2x04 | Airdate: Oct 16, 2018