And so we reach the fourth, and final part of a series that never deserved a first sequel, let alone three of them. The slim storyline was told in its entirely in the first movie, and the next three have just been poorly thought-out remakes, redos or continuations of the same situations. This one follows straight-to-video B-movie territory from beginning to end, bringing everything down to its lowest common denominator. There's a misguided but decent scientist hero – Ben Cross, looking embarrassed to be here, a pretty young and nubile actress, Helena Mattsson, whose acting skills are extremely limited, some monster suits and some very bad CGI effects.

The storyline kind of meanders from place to place without ever progressing. There's some experimental stuff in a laboratory, more scenes of the alien women on the prowl searching for a mate, and other aliens besides who kill people with their long CGI tongues. The script is very poor and the performances poorer, and there's no decent action or gore to speak of. Just nudity, and even that gets boring after a while, so I really do hope this is the last we'll see of the Species films

I think it was obvious that another straight-to-DVD sequel wasn't a wise decision, you even see the letters PU at the beginning, so it was obvious to stink, lol. Basically college professor Miranda Hollander (Helena Mattsson) lives her life like any other normal woman, before suffering a mysterious blackout, and without her knowledge, transforming into a hideous alien creature. Her "uncle" Tom Hollander (Chariots of Fire's Ben Cross) tells her the truth he has kept from her since birth, she is a half human, half alien creature, created from alien DNA to create a hybrid. She has been injected with human hormones to stop the alien inside her coming out since birth, but it is obvious they are not working as well as they used to. The only person who may be able to help her, and explain another creature chasing after Tom, is co-creator of Miranda, Forbes McGuire (Heroes' Dominic Keating). The only way to save her, from dying, is to find a live female to clone from, and Forbes finds a prostitute (of course). The new Miranda is created, with the same memories, but even more vicious, blood-thirsty and desperate to breed, thankfully she is blown up in the end, by Tom. Also starring Edy Arellano as Calderón and Marco Bacuzzi as Rinaldo. The special effects are limited and not convincing, the gore doesn't do anything, and the acting skills, lame Australian accent by Keating, and most dialogue, are just terrible. I can safely say that this was even worse than the previous sequel, and I wouldn't be too surprised if they were stupid enough to make another sequel, or even a prequel. Poor!

This is a bad movie. Like all of the sequels to the first movie. The effects were all computer generated except for the species suit that I have got bored of. They dragged out all of the scenes far more than they ever should have. I have nothing to write. There was no imagination in the film and so I have no imagination to write a review. Another painfully bad entry into the Species series that offers nothing new or good. My favourite bit was the flying nun.