Supergirl: Superman Battle is 'Complicated'

[This article contains spoilers for Supergirl.]

The stars of the Supergirl season 2 finale preview an emotional episode that includes a battle with Superman. The Supergirl season 2 finale is mere days away, and fans are preparing themselves for a wild ride, as EP Andrew Kreisberg calls the episode their "biggest ever." Not only will the final episode feature several epic battles, one of the unlucky foes to face off against Supergirl is an unlikely former friend - the Man of Steel himself.

The trailers for the fiery finale, polemically titled "Nevertheless, She Persisted," feature the Kryptonian battle. We also recently reported on images from the episode, including some revealing shots of the scenes between the two cousins. Now, cast members are adding fuel to the fire, as Superman guest star Tyler Hoechlin and show lead Melissa Benoist drop hints about the upcoming episode.

In a tease for EW's Spoiler Room, Hoechlin cast some ambiguity around the already baffling faceoff. When asked why Superman was fighting Supergirl, the actor said:

“Any time you find yourself squaring off against someone that’s family, it takes on a little bit more of a toll. But [why they're fighting is] something you’re going to have to wait and see to find out; it’s a little more complicated than it appears.”

During an interview with ComicBook.com, Benoist also hinted at the finale's emotional impact. In response to Kreisberg's comments about the big emotional finale, Benoist added:

"I think it's a huge finale, and there's a lot going on, and I think people will go on an emotional roller coaster with Kara, so I'm sorry to all the fans in advance. ... Every time I get a script, I'm like, 'There's no way we're going to top what we just did.' And then I read the new script and I'm like, 'how are we going to do this?' And somehow we do. So I think we'll only just keep getting bigger and bigger. The scope of this world is so massive that we can't go back."

Benoist also gave a special shoutout to Cat Grant, played by Calista Flockhart, citing Calista/Cat's return as her high point of the finale.

Clark Kent Superman in his suit on Supergirl

Why Superman is evil seems pretty cut-and-dry to us - the most likely theory is mind control, though we wouldn't hate a return appearance from M'gann, a.k.a. Miss Martian - but it's fascinating to get an additional look at the overall emotional impact of the fight between the two cousins. After all, the superheroes are inextricable from one another, as the only two surviving members of the planet Krypton. Kara has dealt with the emotional isolation of being the last of her people in past episodes, so having to fight her only living biological family member will likely be taxing.

As to the other stops on Kara's "emotional roller coaster," your guess is as good as ours, though it may refer to a major character death. Fans have been speculating that one familiar face won't make the cut for season 3, and we'd be willing to place some bets on Kara's boyfriend, Mon-El. The biggest villain behind season 2, Rhea, is Mon-El's mother, after all, and his death would validate these teasing interviews. Not only would Mon-El's death get rid of a character some fans have disliked this season, it would also mean some serious emotional devastation for our hero.

Fatal or not, this finale is generating some serious hype - and we hope Kreisberg and co. deliver on their promises.