Among the Stars provides behind-the-scenes access to the critically important NASA mission of repairing a $2 billion science experiment, the Alpha Magnetic Spectrometer (AMS), which aims to reveal the origins of the universe. To repair the AMS, former Navy Seal Captain Cassidy and his team must undertake a series of complex spacewalks, but the story quickly becomes a tale about the broader team at NASA, their roles on this daring mission and the collective quest to succeed.