so this theology professor at a bible college back in the start of the 1900's thinks there's a way to Teach absolute morals with out a divine creator. a Friend talks him into trying out this steampunk inspired gadget saying it can send him back to the future, but there's no flux capacitors or high powered steam trains or even a hoverboard in sight.
instead he was sent to "Present Day" 1990's to witness how everyone still believes they are moral but what is considered moral has shifted and things have majorly went downhill. He's also made to hold the idiot ball way more then he should even considering where he's from, and at least two scenes he goes and buts into other people's business in a way I think would of been just as rude, and ineffective of a thing to do even back in his time as it was in the present day so he really should of known it wasn't going to work. There's also a scene towards the end, where he ends up getting invited to speak at this church once they found out he was a bible scholar. He gives a fairly good speech about the importance of having a real relationship with Jesus and not just paying him lip service as he'll know and won't be pleased. and by the end they have it look like the message is starting to sink in to the crowd. But does this pastor do what I've seen every other pastor do in a similar situation, because it makes so much logical sense? no, instead of doing an altar call so if anyone was actually moved by that speech they could get the help they wanted/needed to get that real relationship started off properly. no instead the pastor acted as if he just was talking crazy talk and he wasn't able to cut him off sooner for some reason and trys to get people distracted with something else in a way you can tell he was clearly scrambling to get a diversion up quickly as if people had to think about that to much they'd just quit.
The movie ends with the guy revising his theory, and wondering just how long humanity does have before the world ends. and asks the Science guy how far in the future can he send things in a way that suggests they could figure out when the world would end by figuring out far in the future you could send something. And the Science guy getting to work on finding out as our scholar guy leaves acting in a way that would suggest he believes too that figuring out the end of the time can be figure out by trying to send something as far in the future as he can. with out realizing the obvious, that even if he knows the furthest point in the future the machine could send something that doesn't mean that point is just before the end of time just the limits of that machine.
so really a lot of the points I feel the movie is trying to make come off as ham handed at best, and while it's got it's good parts most of it plods along as a slow rate, and trys to make him run into various problems so you can see him fly off the handle going "ahh that's so bad."