Though no video preview is available, pictures have been released for the final episode of Young Justice.
This Saturday, "Endgame" will air an appropriately titled episode that brings the series known as Young Justice to an end. In the episode, The Reach pull off their last gambit with the Earth in jeopardy. Strange alliances are made as the final battle between Earth's heroes and The Reach erupts.
It's kind of a shame, really, that the episode will mark the last time one will truly see four generations of The Flash, Jay Garrick, Barry Allen, Wally West, and Bart Allen, all share the screen at the same time (DC hates Wally West and has a very young Jay Garrick on Earth Two). Likewise, the three Beetles, Blue, Black, and Green, may never be seen together again, not to mention a competent Tim Drake, Lex Luthor in a business suit, or Miss Martian, Artemis, and Kaldur, all of whom currently aren't in actual comic books.