Ultra Warrior, also known as Welcome to Oblivion, is a post-apocalyptic 1990 film directed by Augusto Tamayo San Román and Kevin Tent.

The main character, portrayed by Dack Rambo, is looking for zirconium which is used to make bombs to prevent aliens from destroying Earth.

Some footage comes from other New Horizons films such as Lords of the Deep, Crime Zone, Battletruck, Battle Beyond the Stars, Wheels of Fire and Dune Warriors.

In the subsequent chaos, the wealthy developed cities run by brutal military fascists, while the poor roam the radioactive deserts created by the nuclear fallout.

In 2058 Kansas City, Rudolph Kenner is staying at a casino/strip bar when he receives a message notifying him that a zirconium mine on Mars was lost to rebel forces.

When Kenner asks about Grace's family, she explains her parents were eaten by subterranean, cannibalistic mutants called “Whities”.

The Mutie spiritual leader, Uncle Lazarus, puts Kenner in charge and reveals that he is part of an unfolding prophecy.

In the end, Kenner writes back to his employers stating the conditions in Oblivion are too radioactive to mine, so they would have to buy the zirconium from the resident Muties.

The only review available on RottenTomatoes.com is by Sebastian Zavala who, writing for Screen Anarchy, declares that the movie "delivers what one could reasonably expect from a sci-fi, low-budget Roger Corman production, with a heaping helping of stock footage: laughable dialogue, terrible special effects, cheesy acting (and worse ADR) and an incomprehensible story.

"[5] Red Letter Media reviewed the film for their show Best of the Worst on the episode Bad Movie Scavenger Hunt Too.