Mike Neeson is an experienced ice-road trucker haunted by guilt over the death of his younger brother, Gurty, in the events of The Ice Road. To honor Gurty’s final wish, Mike travels all the way to Nepal to scatter his brother’s ashes atop the majestic Mount Everest. His journey begins in Kodari, a region torn by conflict between local villagers and a powerful industrial corporation seeking to build a hydroelectric dam. The opposition is led by Ganesh Rai, played by Shivantha Wijesinha, whose father is tragically killed when a mercenary working for the corrupt company pushes his bus off a cliff, mistaking it for an accident. Ganesh, portrayed by Mahesh Jadu, realizes that his own life may be in danger and hides his son Vijay in a remote cabin in the Annapurna Highlands, seeking safety.
Mike teams up with Dhani, a highly skilled local Everest guide played by Bingbing Fan, as they prepare for their journey. They board the "Kiwi Express," a bus driven by the energetic Australian driver Spike, who navigates the dangerous "Road to the Sky," a treacherous mountain pass at extreme altitudes. Along with a group of passengers—including the academic Evan Myers and his tech-savvy daughter Starr Myers—they set off on this perilous route. Their adventure takes a dark turn when Vijay boards the bus, only to be targeted by two mercenaries, Jeet and Yug, who hijack the vehicle in an attempt to kidnap him.
In a tense confrontation, Mike punctures the bus tire to force a stop in Kodari. During the chaos, Yug is killed by Mike, while Dhani manages to knock out and restrain Jeet. Police arrive, but things are far from what they seem. The officer Shankar, played by Monish Anand, appears to arrest Jeet and seemingly rescue Vijay—yet he is secretly on Rudra Yash’s (played by Mahesh Jadu)) payroll. Rudra, a ruthless industrialist allied with corrupt forces, tortures Vijay for information about his father. Recognizing the danger, Mike, Dhani, and Myers investigate and uncover Rudra’s true motives, leading to Myers’ shocking murder at Rudra’s hands.
The group rescues Vijay and escapes on the repaired bus, although not without injuries. Spike, refusing to die in the bus, orders everyone to carry him on the side of the road before shooting at Rudra's mercenaries convoy, which results in Spike’s death. As they push through the hazardous mountain terrain, the bus sustains more damage, and they finally reach the Annapurna Highlands. There, Vijay reunites with his father amidst a tense yet emotional moment, and Mike, suffering from his injuries, collapses. Dhani tends to Mike’s wounds, kills another corrupt policeman, and teaches Starr some combat skills to prepare for the final confrontation.
The next day, with Mike recovering, they attempt to cross the dangerous gorge using a crane. Rudra’s mercenaries arrive, killing Ganesh and gaining control of the crane, which Rudra uses to escape. A fierce pursuit ensues as they cross the China–Nepal border, where the mercenaries kill Jeet and Shankar. Rudra himself is pushed off a cliff during the chaos, symbolizing the fall of corruption and evil.
In the aftermath, Vijay announces that their village will benefit from electricity and a new river flow, symbolizing hope and progress. Mike, finally ready to let go of his grief, scatters Gurty’s ashes over the Himalayas. As he prepares to leave Nepal, he shares a heartfelt farewell with Dhani at the airport, recalling their shared moments and Gurty’s memory. He then looks back one last time, leaving the mountains with a sense of closure and peace.
Throughout this epic journey, themes of redemption, heroism, and resilience are woven into every turn of the treacherous mountain roads, highlighting the indomitable spirit of those fighting against corruption and peril to forge a better future.