Here's the plot: while attempting time travel, some dude ends up being tossed into a parallel universe, which uses scenes from the unnamed series. This releases some villains into our universe, which uses the GoShogun footage.
For some odd reason, there aren't any sound effects half the time, and a song that isn't played during the show(Something by Bananarama, I think) is credited in the end credits.
It took 6 writers, and still made very little sense. Luckily, I only payed 2 bucks for it.