What we have here is a movie that really shouldn't have been made. I could see this for a late night sketch show, getting a bunch of Trek alumns and putting them in ridiculous situations. Problem is this movie really defines throwing everything at the wall at hoping something sticks.
There is literally so much going on in this movie that it's next to impossible to review it. Long story short, some guy wants to take over the Earth and does this by turning everybody into plant people. Meanwhile we have four astronauts played by three minor Trek characters and a marionette. Needless to say the entire thing is a mess.
There's lots of Trek references in it, there's a lot of callbacks to the show, there's ridiculous situations and honestly after a while it just gets tiresome.
If you want a spoof of Star Trek type material that's actually good go watch "Galaxy Quest".
Review by Java_Joe from the Internet Movie Database.