S6, EP7 "Fear Knot"
As the Super Friends brave the Phantom Zone to bring Supergirl home, the members of the team are confronted by visions of their worst fears.
S6, EP6 "Prom Again!"
Flashbacks reveal young Kara experiencing kryptonite for the first time; Nia and Brainy are trapped by invading aliens; a young Cat Grant may be the reason Supergirl never gets out of the Phantom Zone.
S6, EP5 "Prom Night!"
Nia and Brainy attempt to save Supergirl from the Phantom Zone by time traveling back to Kara's home in 2009; a young reporter named Cat Grant sets her sights on Midvale as she suspects there is a big story in the small town.
S6, EP4 "Lost Souls"
Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached; Lena joins the Super Friends on a mission but finds she disagrees with their plan of action.
S6, EP3 "Phantom Menaces"
Supergirl makes a new ally; Lena and Lex battle for control of Luthor Corp.
S6, EP2 "A Few Good Women"
As the stakes with Lex are raised higher than ever before, Lena must decide how far she is willing to go to stop her brother; Supergirl and the team are faced with a challenge unlike anything they've ever dealt with before.