'Aeronauts' Trailer Sees Felicity Jones and Eddie Redmayne Fighting for Their Lives in Hot Air Balloon

The film from Tom Harper is set to hit selected theaters Dec. 6 before streaming on Amazon Prime on Dec. 20.

Amazon has released a new trailer for The Aeronauts.

Set in 1862 London, the film chronicles the story of real-life meteorologist James Glaisher (Eddie Redmayne) as he boards a hot air balloon with Felicity Jones' character to break the record for highest flight in an attempt to better understand the weather. 

Jones and Redmayne, who starred together in 2014's The Theory of Everything, lead the Amazon original, along with Himesh Patel, Phoebe Fox, Vincent Perez, Anne Reid, Tom Courtney and Rebecca Front.

The latest trailer opens with a determined James asking for funding to explore the skies. "To understand our weather is to prepare our world for floods, droughts, famines," he says to a doubtful audience who dub him a madman. 

James then seeks out Amelia Wren, an aeronaut who recently lost her husband, to help co-pilot his expedition. In front of thousands of onlookers, James and Amelia board the balloon ready to start their quest. "Today, history will be made," says Amelia as the two embark on their journey up into the clouds. 

The danger becomes apparent when the air pressure changes and the sky darkens as the weather turns against them. When the weather calms, an accomplished James says, "We are now higher than anyone has ever been." 

At one point, Amelia has to climb up the balloon to fix the gas valve, but she finds herself hanging on to the side of their vessel, fighting for her life.

The Aeronauts made its world premiere at the Telluride Film Festival in August and also screened at the Toronto International Film Festival in September to mixed reviews. The film, from director Tom Harper, is set to hit selected theaters Dec. 6 before streaming on Amazon Prime on Dec. 20.

Watch the full trailer above.