Uncharted 4: A Thief's End made its latest appearance today at the PlayStation Experience keynote in Las Vegas, Nevada today, and the series has never looked better.

The gameplay video began with protagonist Nathan Drake standing at a cliff's edge overlooking a jungle. "Where the hell are you?" he asked in footage that was taken running in real time on a PlayStation 4. Drake explored a water-filled cave, using his trademark wits to narrate the experience. He climbed ledges, collected treasure and talked to skeletons at every opportunity.

When he couldn't sneak around enemies anymore, Drake started shooting, as he's accustomed to doing. At one point, when he had nowhere else to go, Drake jumped off a ledge and used a grappling hook in mid-air to reach his next destination.

At one point in the demo for the unfinished game, Drake fell through the environment and Uncharted 4 restarted at a checkpoint.

The gameplay was very much in line with previous Uncharted games, sporting (sometimes destructible) cover, prompts for picking up weapons and even close quarters stealth takedowns. The environments followed suit with lush vistas and convenient platforming ledges to crawl around.

The end of the trailer revealed something previously unknown: Nathan Drake has a big brother, who you can see below. That's who he was looking for, apparently.

At its E3 2014 press conference, developer Naughty Dog announced that Uncharted 4: A Thief's End is headed to PlayStation 4 in 2015. For more on the game, you can check out some concept art and a detailed image of the next-gen version of protagonist Nathan Drake.