Carly Nykanen

A look at the lives of employees at a big box store.

Kara's two identities are stretched thin when Supergirl must protect National City from a series of bombings and Kara is tasked with babysitting Cat's son, Carter (guest star LEVI MILLER). Also, James is conflicted when his ex-girlfriend Lucy Lane (recurring guest star JENNA DEWAN TATUM) seeks to rekindle their relationship.

Kara faces off against her mirror image when Bizarro (guest star HOPE LAUREN), a twisted version of Supergirl, sets out to destroy her. Also, Kara grows closer with Cat's son, Adam.

Kara must find a way to free her friends when Non and Indigo use mind control to turn National City's citizens into their own army.

While James's relationship with Lucy reaches a crossroads, Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (guest star Laura Vandervoort), a dangerous being with a connection to Kara's past, who can transport via the Internet.

A baby's biological parents are the focus of a search by Jake and Julia. Meanwhile, a terrible incident may have been inspired by a heated interview on "LHL"; and the truth about Sarah and Jake's relationship is revealed to Oscar.