It's a relatively straightforward quest that is accessible for beginners. If it offers any comfort for an RPG newbie, the guide says, "If a character wants to try something crazy or if there’s confusion about a rule then just make something up and try to roll with it as best you can. It’s only a game on a beer can after all." (It's not totally dissimilar to that Wendy's tabletop adventure released last fall. Though, that was pretty elaborate with lots of fun artwork.)
To play, just buy a four-pack, distribute the cans around the table, and then the game master can head to TabletopSession.com to guide your band of misfits on a journey called "Search for the Elder Draft."
While you only need a single four-pack to play, it's a session beer, so you'll probably want two or three four-packs before you complete the quest for the Elder Draft.