Tin Men and the Telephone present the G.R.E.A.T.E.S.T. show - Global Relocation of Evolved Apes Towards Exoplanet Suitable for Terraformation: a new immersive multimedia performance that combines improvised music, visuals, and audience participation via a smartphone app to address the very timely topic of climate change in a uniquely interactive, fun and thought-provoking way.