As Dr. Gordon Freeman, you were last seen exiting City 17 with Alyx Vance as the Citadel erupted amidst a storm of unknown proportions. In Episode Two, you must battle and race against Combine forces as you traverse the White Forest to deliver a crucial information packet stolen from the Citadel to an enclave of fellow resistance scientists.
"The Masked Prisoner" behandelt die unerzählten Geschichten mehrerer Half Life-Charaktere, die sich in einem Gefängnis am Rande von City 17 ereignen.