Learn the gripping story behind the events of Half-Life 2! You and your father live in a murky place called City-17. Caught up in a whirlpool of unexpected and ominous events, you understand the Alliance is actually evil. So you head a secret scientific research to help the resistance and create important tools for a few who dared to challenge those in power. What you are doing is highly dangerous, you can be found out any minute. Follow the fascinating storyline, equip your character with the best weapons and upgrade your skills to protect your life!