Half-Life introduced the world to bespectacled young physicist Gordon Freeman, Ph.D. A simple research assistant at the Black Mesa Research Facility, Gordon is thrust into the center of a cosmic war by a teleportation experiment gone badly wrong. Alien creatures from distant alien hellholes scramble through a shattered dimensional barrier and set about butchering the Black Mesa staff as a prelude to exterminating life on Earth.
Government forces quickly arrive to eliminate the alien threat. Unfortunately, their methodical killing spree targets every human witness as well. Thanks to an experimental hazard suit, Gordon is able to navigate this violent confusion of creatures, staff, and homicidal soldiers, finally reaching then destroying what appears to be the monstrous source of the infestation. The victory is short-lived, however. Gordon's heroics catch the attention of a sinister interdimensional bureaucrat. The G-Man, as he's come to be called, seals Gordon in stasis far from Earth, thought, and time itself.