Gordon Freeman, along with the help of human and non-human allies, continues his fight against the ruthless alien force known as the Combine.
Did You Know?
During development, the Magnusson device was given a pumpkin appearance as placeholder art until a final version of the actual device was made. A pumpkin was chosen because it was the exact size and shape the developers wanted. While the final version of the game does not feature a pumpkin as a Magnusson device, pumpkins can be found in the house one of the Advisors is sleeping in. See more
I give the Combine a lot o' credit, though. They're tough competitors, a real class act!
Referenced in NCIS: Dead Reckoning