Clark and Lois are now working at the Smallville Gazette together and enjoying small town life, as Chrissy struggles to balance a new love interest and her friendship with Lois. However, Lois' own work-life balance is put to the test when an undercover assignment reveals a deadly foe that promises to change the Kent family forever. Meanwhile, John Henry is haunted by his doppelgänger's past, leading to dangerous consequences for him and Natalie. Lana Lang and Kyle redefine their family post-separation, while Sarah explores what the future holds for her and Jordan now that she knows the truth about his powers. Having learned the hard way that no one else can be trusted to work with Superman, General Samuel Lane reclaims his post at the Department of Defense, only to face his own conflict in working with his grandson, Jordan.
After years of facing supervillains, monsters and alien invaders, the world's most famous superhero, The Man of Steel aka Clark Kent and comic books' famed journalist Lois Lane come face to face with one of their greatest challenges ever - dealing with being working parents in today's society. Complicating the already daunting job of raising two boys, Clark and Lois worry about whether their sons, Jonathan and Jordan, could inherit their father's Kryptonian superpowers as they grow older.
Returning to Smallville to handle some Kent family business, Clark and Lois are reacquainted with Lana Lang and her Fire Chief husband, Kyle Cushing. The adults aren't the only ones rediscovering old friendships in Smallville as the Kent sons are reacquainted with Lana and Kyle's rebellious daughter, Sarah. Of course, there's never a dull moment in the life of a superhero, especially with Lois' father, Gen. Samuel Lane looking for Superman to vanquish a villain or save the day at a moment's notice.