They say the best way to get the right answer on the Internet is to give the wrong one, so I'll help your bump by guessing what the right things to do are. For sure, I would think you'd want to change the oil and filters. Probably want to drain all the fuel and replace it with fresh stuff with extra additives and a new fuel filter (maybe a new fuel tank entirely? I'd be worried about the engine actually starting and then pulling a bunch of gunk into the injectors). Probably new batteries. I don't know if a transmission is ok just sitting for five years, so maybe replace the transmission fluid.
Really wrong answer: just turn the key and punch the ether start until it gets going.