Lois and Clark struggle as a couple while Chrissy adjusts to running The Smallville Gazette with Lois. Jonathan faces new challenges on the football field, and secrets threaten to destroy Jordan and Sarah's growing relationship. Meanwhile, Kyle grows concerned over Lana's involvement with a new mayoral candidate. Lastly, John Henry Irons and his daughter Natalie attempt to make this new Earth their home.

Clark opens up to Lois about his ongoing struggle with visions and admits that there is only one person who might be able to help. Meanwhile, Lana receives some unexpected news and tensions begin to rise between Lois and Chrissy. Lastly, Sarah breaks plans with Jordan to spend time with Natalie.

Lois reaches out to Ret. General Lane as Clark's visions become worse during heated arguments with both Jonathan and Jordan. Meanwhile, Lana shares her frustrations with Kyle. Lastly, Natalie learns that her father didn't follow through on a promise he made to her.

Lois and Chrissy are on a mission to find Lois' sister Lucy and Jonathan and Jordan become more and more unsettled as Clark's painful visions continue. Meanwhile, Lana, Kyle and Sarah share a family breakfast and discuss Sarah's upcoming quinceañera. Lastly, Natalie and her father share a bonding moment.

Lana, Kyle and Sarah prepare for Sarah's quinceañera, but things don't end up going as smoothly as they had hoped. Clark finds himself struggling with feelings of guilt about what happened to John Irons and Lois worries that she might have been wrong about Ally. Meanwhile, Jonathan learns that Ret. General Samuel Lane is planning to train Jordan. Lastly, Chrissy goes searching for the truth about Lois.

Lois tells Clark that she and Chrissy plan to do a deeper dive into the Inverse Society and Lana and Sarah try to comfort each other after the fallout at Sarah's quinceañera. Meanwhile, Jordan notices something suspicious in Jonathan's book bag. Lastly, Lt. Mitch Anderson finds himself under fire for the deterioration of the department of defense's relationship with Superman.

Superman pleads with Lt. Anderson to investigate Ally Allston and Lois receives some very upsetting news. Meanwhile, Lois helps Lana prepare to fight the good fight. Lastly, Jordan is still irritated with Jonathan for lying to him.

Lois, Clark, and Natalie notice a difference in John Henry's behavior and fear something might be very wrong. Meanwhile, Kyle encounters an awkward moment with Lana while stopping by the house to pick Sarah up for school. Lastly, Jonathan and Jordan brace themselves when they realize a talking to from their parents is headed their way.

Lois thanks Lana for sticking up for Jonathan when one of the football players mother's starts dogging him for getting football season cancelled. Meanwhile, Jordan's unexpected departure on the mayoral election day leaves Sarah rattled. Lastly, Natalie and Sarah wonder if they notice a spark between John Henry and Lana.

Superman races through the portal after Ally Allston, but when he arrives on the other side, he discovers everything on this parallel earth is... bizarre. Navigating his way through deceivingly familiar faces and landscapes, Superman goes on one wild ride in his fight to stop Ally from merging.

We pick up right where we left off with Jon-El smirking at Lois, who is still standing on the porch with Jordan. Jon-El, catches sight of his doppelganger Jonathan, standing not too far away. He lunges at him and Jordan tries to intervene but Jon-El appears to be stronger and faster than him.

Clark and Lois disagree on the best way to figure out if Ally Allston went to the Inverse World. Meanwhile, John Henry makes a surprising discovery and Lois sets out to track Lucy down.

A weary Lois holds vigil at Superman's bedside. Meanwhile, Jonathan and Jordan continue to worry about their father who seems more human now than ever. Lastly, John Henry and Natalie work together to figure out the best way to defend against Ally Allston's powers.

Chrissy Beppo, with the authorization of the Department of Defense, has a message for the people of Smallville, not only is the merging of planets real, it is happening.