The stronghold of evil has been defeated, but it's unfortunately too early to speak of a complete victory. On the ruins of City 17 the portal gates are about to come back online. And if that happens, not even a miracle will be able to save the Earth. The last hope is to stop the process — to use the data once stolen by Alyx from the Citadel's main server.
You can buy Half-Life 2: Episode Two in the online store steampay.com and help the heroes in their noble cause. Hurry, because Freeman only has a few hours left to deliver this last priceless cargo to the rebels holed up in White Forest. A most dangerous walk awaits you. There won't be street fights here, but that doesn't mean there won't be intense emotions. You'll soon get them in the catacombs. So, shall we go?