What if they failed: A Star Wars story

Failure has struck the Rebellion! The plan to stop the Empire and destroy the first Death Star coordinated by the Alliance to Restore the Republic has ended in disaster; The proton torpedo shot by Luke Skywalker and destined to destroy the battle station prematurely detonated against the wall of the reactor shaft crippling the Death Star but not destroying it. Allowing the Empire to deal a crippling blow to the Rebellion and turning Yavin-4 into a magma filled wasteland of a planet much like Mustafar. With the few remnants of the Rebellion on the run in stand alone ships and very few Rebel leadership alive on board the Millennium Falcon, The Empire prepares to deal the killing blow and end the Rebellion all together.