In the future, the world is in peril. Global warming has taken its toll, deforestation has wiped out too many forests and there's worse yet to come. Earth is on its last legs, and the Cloud Watchers of old have disappeared into legacy.
Deep in the forest, two environmentally conscious runaways live off grid to do their bit to save the planet. Up in the clouds, the floating airship The Cloud Lab watches over the Earth as best they can. A steamship captain, an old Cloud Watcher, workers in Kew Gardens, and more all watch and wonder what will be the final straw that tips the Earth into chaos.
When the Anti-Environmental League forms, an unexpected revolt sets events into motion that cannot be undone. Difficult challenges arise that might just be the planet's ultimate downfall - unless the world's population can be roused to save itself.