Death Star Destroys Enterprise (Special Edition) - IGN Original
"After Star Trek IV, the crew of the Enterprise needed more whales, so they came back to San Francisco again, except this time it's an alternate universe where Reagan's Star Wars defense initiative from the 80's is coming to fruition as the Death Star nears completion (superlaser already fully operational). Star Wars is our military … It's Star Trek vs. Star Wars in the skies over San Francisco!" (via)