Cadmus reveals a second Metallo, forcing the team to split up.
The peace is shattered when Project Cadmus makes its move. They deploy Metallo—John Corben—now a cyborg fueled by a heart of pure Kryptonite. For Kara and Clark, he isn't just a villain; he is a walking death sentence.
The Kryptonite radiation leaves the cousins paralyzed and dying. [S2E2] The Last Children of Krypton
Alex Danvers and Martian Manhunter step in, using lead-lined tech and sheer Martian strength to buy time. The Last of Their Kind
(Cat Grant’s exit or the Clark/J'onn rivalry?) Cadmus lore (What they have planned next?) Cadmus reveals a second Metallo, forcing the team
As Clark and Kara recover at the DEO, the weight of their legacy hits home. They are the only ones left who remember the smell of the Kryptonian air or the sound of the Rao's light hitting the glass cities.
While J'onn J'onzz remains wary of Kryptonians due to his own tragic history, Kara is caught in the middle, desperate to prove that her cousin and her mentor can work together. The Cadmus Threat For Kara and Clark, he isn't just a
Clark realizes that National City is Kara's home now—she doesn't need his protection; she needs his respect. The Final Stand