Plot summary
The Team holds off Zod's army from escaping the Phantom Zone through the Kaizer Thrall's Boom Tube. Nightwing volunteers to go through it, winds up in the Fortress of Solitude, and seemingly dies fighting Lor. Zatanna secures the Team's safety by opening a portal which closes before Rocket can follow. M'gann's group and the Legion go after the Zods. Sensing their arrival, Ursa, newly turned into the Emerald Empress, blasts the bio-ship. Superman survives the crash, but is poisoned with kryptonite and taken hostage. The Zods go to Metropolis, where Dru claims rulership over Earth and orders Connor to execute Superman.
Credits
Adapted from Wikipedia contributors, List of Young Justice episodes. HTML formatting and reference markers removed.