This article describes the Half-Life 2 storyline, chapter by chapter. Gameplay tactics, trivia and walkthrough information should not be included, unless they are related to the plot instead add it to its respective chapter article. This article is not a walkthrough, but a plot summary. Visit our Cleanup Project for more details and, please, notify the administrators before removing this template. You can help by correcting spelling and grammar, removing factual errors, rewriting sections to ensure they are clear and concise, and moving some elements when appropriate. This article has yet to be cleaned up to a higher standard of quality.