Jack Bruno, a struggling Las Vegas cab driver with a murky past, finds his life taking an unexpected turn when two unusual teenagers, Sara and Seth, appear in his taxi. They offer him a substantial amount of money to drive them to a remote location in the Nevada desert. Initially skeptical, Jack is quickly drawn into a mysterious and dangerous adventure when it becomes evident that his passengers are not of this world. Sara and Seth reveal they are aliens from a distant planet, on the run from government operatives and bounty hunters determined to capture them.

As they journey to their destination, which the siblings reveal is a hidden spacecraft that will take them back to their home planet, Jack and his new friends must outsmart and outrun the relentless forces pursuing them. Along the way, they enlist the help of Dr. Alex Friedman, a discredited astrophysicist who is in town for a UFO convention. Together, they uncover a sinister plot that threatens not just the safety of Sara and Seth but the future of the Earth itself. The unlikely allies form a bond as they race against time to help the siblings complete their mission, while facing challenges that test their courage and resolve at every turn.