Here’s a synopsis, in case you forgot the basics:

After a crazy night of drinking in a ski resort hot tub, the men wake up, heads’ pounding, in the year 1986. This is their chance to kick some past and change their futures – one will find a new love life, one will learn to stand up for himself with the ladies, one will find his mojo, and one will make sure he still exists!

Here’s ye olde red-band trailer. Don’t watch it at work, kids. This one has boobies and bad language!