Jim Al-Khalili - an internationally renowned professor of Theoretical Physics and presenter of BBC Radio 4's The Life Scientific - launches into Space for our sake and probes the answers. He dispels ignorance and conspiracy theories, easing the intellectual vise that grips our minds whenever we think about whether life exists elsewhere.

His fellow travelers are the best in our Galaxy: Martin Rees, Ian Stewart, Paul Davies, and a task force of bioastronomers, biochemists, cosmologists, astrophysicists, anthropologists, and neuroscientists. All of them are in the battle to uncover the truth.
They explore the mysterious hydrocarbon lakes and ice of Titan (Saturn's natural satellite), Enceladus, and Europa.
They debunk flying saucers and alien abductions, analyze cyborg technology, search for traces of primordial life in cosmic biomolecules that create single-celled organisms, and stay vigilant for signals from extraterrestrial Artificial General Intelligence machines.