Half-Life: Alyx - Return to Rapture

The Combine have discovered the whereabouts of Rapture.

Rumors exist that the suitcase of Andrew Ryan has yet to be found. Within it are the secrets to ADAM and the plasmids.

The quest for this artefact is not archeology, it's a race against evil. If it is captured by the Combine the armies of darkness will march all over the face of the earth.