Lost in Wiki-Space
Every once in a while I like to read the Wikipedia descriptions of movies with really crazy or convoluted plots.
Just read this gem describing the ending for the film version of “Lost in Space” (2000).
Spoilers, I guess, if you really care.
"Professor Robinson and Major West go out onto the surface in search of radioactive material to replace the burnt-out part of the ship’s core. They find a strange, growing bubble of unknown origin, which they must enter. They learn that the "holes" and "bubbles" are distortions of time and space, caused by future versions of Will and Dr. Smith constructing a time machine. The future Will Robinson wants to travel back in time to prevent the Robinsons from ever taking off. Robinson and West find out the bubble is actually a small schism in time on the same planet. They are all betrayed by the future Smith, who has mutated due to the spider scratch going untreated. He plans to unleash an army of spiders on the Earth. Robinson battles with Spider Smith while Major West returns to the stranded Jupiter II to evacuate everyone. Robinson stops Spider Smith by tearing open his eggsac, freeing the baby spiders, who then attack the injured Spider Smith. John pushes the mutated Smith into the uncompleted time portal, where he is torn apart by the gravitational field.”