Easter eggs were expected in last night's episode of Supergirl as Kara made a trip to Superman's Fortress of Solitude with Jimmy Olsen. However, the show delivered on a magnitude that not even the biggest Supergirl fan could have expected. While there were numerous easter eggs, check out the top four below.
The famous key to the entrance of the Fortress of Solitude is left in plain sight. It's made of compress-dwarf star, which gives it density that only Superman and few others can lift.
Resident Kryptonian helper bot, Kelex also made an appearance. What do you think of this design versus the Kelex in Zack Snyder's Man of Steel?
There' was a Legion of Superheroes flight ring at the Fortress. Fans are already speculating that this is the Legion flight ring glimpsed in the Multiverse/Speed Force montage glimpsed earlier this season on The Flash.
The Omegahedron made an appearance in this epsidoe as well. Not familiar? This device appeared in the 1984 Supergirl movie and was a source of limitless energy and creation (think Green Lantern Power Ring that never needs to recharge). It was in the possession of Non, who used it to bring back Indigo.
SUPERGIRL DOES BATTLE WITH INDIGO, A DANGEROUS BEING WHO CAN TRANSPORT VIA THE INTERNET AND HAS A CONNECTION TO KARA’S PAST, ON “SUPERGIRL,” MONDAY, FEB. 29
Laura Vandervoort Guest Stars as Indigo
“Solitude” – Kara travels to Superman’s Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort), a dangerous being who can transport via the Internet and who has a connection to Kara’s past. Also, James’s relationship with Lucy reaches a crossroads, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network.