"Injustice"  (Season 8 | Episode 21)  43:0
Tess gathers a team of meteor-infected mutants to track down Doomsday to give the location to Clark. When Tess learns that Clark is going to use black kryponite to trap Doomsday rather than kill him, she steals the crystal and destroys it.
Original Air Date: 5/7/2009