The mysterious key to a hidden world

What if you had multiple chances to save the world? Henry finds himself in such a predicament that his planet's fate hangs in the balance. His father got sued by the space unit he worked with for running an extra-terrestrial mission that was not designed to be run by private organisations. Before, the space unit authority had warned and stopped Henry's dad from working in their firm after she blubbered about what the firm had been keeping a secret.
When the aliens came for a second time, they lost their mysterious key. They pushed for a requisition from their state to crumble a portion of their satellite. This was to unlock a portal to their hidden home. They offered them a glimmer of hope. The aliens promised them a new life in their realm once the doors were unlocked. In their quest for the key, shall they grasp these chances of redemption, or will they lose sight of what is possible upon its discovery? However, they got into a race against time's relentless tick. Until Henry embarked on an urgent odyssey to reclaim the elusive key amidst a desperate struggle for survival, as the inhabitants had given up retrieval, Henry perceived the key as the potential saviour of his desolated world. This was despite the profound harm the planet had already received.