The ship reappears because Dr. Weir (Sam Neill) built a super crazy gravity drive that creates black holes which in theory would allow for infinite space travel. But because it was built by a character Sam Neill is playing, it's inherently eeeeeeeeeeeeeeeeeeeevil. So the crew of the Lewis & Clark (which I will stop thinking of as Lois & Clark) led by Lawrence Fishburn with Dr. Weir in tow goes to check out the newly returned ship. Once the crew dock with the Event Horizon, they board the ship to find out what happened to the crew. Almost immediately Justin (Jack Noseworthy) aka Baby Bear is sucked through the gravity drive for mere seconds and comes back in a catatonic state. The crew finds the footage of the former crew enjoying the finer points of sadomasochism and decides to get the fuck out. Parts of the ship were damaged so while the crew works to fix them, the Event Horizon messes with them and finally takes control of Dr. Weir who sabotages them at every point.
|Did you shave differently?|
The Easy Button
The other possibility, since Weir's goal is to send the WHOLE ship to the Hell dimension that the Event Horizon can open small portals (that could suck one person in) but the gravity drive needs to be fully activated by someone to send the whole shebang to Hell.
OR the Event Horizon is testing the new crew that's come on board. The first crew whom we catch glimpses of through the recovered footage is all about the Hell dimension; ripping out eyes, weird sexual acts, they're all over it, Jerry! So, what to do when a new crew arrives? FEATS OF STRENGTH! Or just mess with them for a bit to see if any of them are susceptible to joining the Cruise to Hell. That way the ship bides its time to see who is up for it. Since Weir is the only one, it makes sense (well, for this movie) that he would take on trying to dispatch with the rest of them then hightail it out of our dimension to his new home.