As Smallville celebrates its first Harvest Festival since Martha’s passing, Clark is reminded what his mother meant to him and learns a lesson that will help him move past her death. Meanwhile, Lois makes a breakthrough in the investigation of Morgan Edge. Lastly, Kyle tries to reconnect with Lana, but it seems like he might be falling back into his old ways.

Superman pays a visit to Morgan Edge. Meanwhile, Lois and Chrissy work together on a story. Lastly, Jonathan finds a welcome distraction during a very stressful school day.

Superman's worst nightmare comes to life and Lois confronts Leslie Larr. Meanwhile, Lana, Kyle and Sarah agree to stay to help General Lane.

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.