Last week, we learned definitively that the Season Two premiere of “Supergirl” will feature the debut of Superman himself, as well as answer some of the mysteries surrounding the mystery pod seen in Season One's finale. Now, we know that the second episode promises to keep the action going, as its synopsis teases the possibility of a new villain's arrival.

The official synopsis states “a kryptonite powered villain" --Frederick Schmidt's Metallo -- will get into some sort of fight with Supergirl, hurting her in the process. Not only that, but it looks like Superman will be spending some extra time in National City, as Clark is also credited as being a part of this episode. Titled “The Last Child of Krypton”, the episode also promises to showcase Kara’s first day at her new job, and the introduction of Snapper Carr, her new boss.

You can take a look at the full synopsis for "The Last Child of Krypton" below.

IAN GOMEZ STARS AS SNAPPER CARR — CADMUS attacks National City with a kryptonite powered villain who ends up seriously hurting Supergirl (Melissa Benoist). Superman (guest star Tyler Hoechlin) blames Hank (David Harewood) because the kryptonite was stolen from the DEO. Meanwhile, Kara’s first day at her new job doesn’t go as planned after she meets her new boss, Snapper Carr (guest star Ian Gomez).

Starring Melissa Benoist as the Girl of Steel, "Supergirl" airs Mondays at 8 pm ET/PT on The CW. The series also stars David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen, Chyler Leigh as Alex Danvers and Jeremy Jordan as Winn Schott and features appearances by Calista Flockhart's Cat Grant as well as Tyler Hoechlin's Superman.

“Supergirl's” second season kicks off Monday, October 10.