Skyrunners

Nick and Tyler discover a small UFO that lands in front of their truck on an empty road near town. They evade government agents, mainly Agent Armstrong, and decide to keep the ship hidden from prying eyes. The moment marks the start of a dangerous alliance with the unknown craft.

After his trip into space via the UFO, Tyler undergoes dramatic physical changes and develops superhuman abilities, including enhanced strength and telepathy. The brothers realize the consequences as he begins to stand out from regular teens. The transformation raises the stakes as government agents close in.

With Tyler's powers attracting attention, reptile-like aliens begin appearing and chasing Tyler. Nick is distracted by his own quest to woo Julie Gunn, leaving Tyler to handle the dangerous situation alone. The tension between hiding the alien tech and chasing normal life intensifies.

Tyler finally tells Agent Armstrong about the UFO and its effects on him. Armstrong explains the science behind the changes and then shoots the UFO with a laser, damaging it. He then reveals himself as one of the aliens in disguise and captures Tyler.

Grief and guilt drive Nick to the UFO hideout to apologize, only to discover Tyler is missing and the ship in ruins. He studies the wreckage and decides to fix the biotechnological craft through the night. His determination sets him on a dangerous path to rescue his brother.

After a long night of tinkering, Nick manages to repair the UFO and activates it. The ship carries him to the alien fortress hidden in caves, accessible through an impact crater. He realizes that the aliens built a hidden base beneath Earth.

Nick finds Tyler in a holding cell and helps him escape. Together, they uncover the aliens' plan to take over Earth by polluting the atmosphere. The brothers vow to stop the scheme and fight back.

Tyler reveals the broader plan to seize control by polluting the atmosphere, using Earth’s environmental disturbances as cover. The brothers discover the pollution equipment and set their sights on destroying it. The conflict escalates to a direct confrontation with the alien forces.

Tyler deploys an alien explosive from the UFO to destroy the aliens and their pollution apparatus. He and Nick escape in the wrecked craft, but a surviving alien in a more powerful version of the UFO pursues them. The chase pushes both brothers to their limits.

In a high-speed confrontation, the repaired UFO fights off a pursuer and crashes during Nick’s high school graduation. The spectacle becomes a dramatic backdrop for the final twist. The crash forces Nick to finish his science project under extraordinary pressure.

Nick uses the repaired UFO as his science project and graduates, earning his diploma. He also reconciles with Julie Gunn and seals it with a kiss. Tyler secures a date with Katie Wallace, and the brothers decide to keep the UFO.

As they celebrate, four agents resembling Armstrong are seen watching from afar, implying that some aliens survived the crash. The sight hints at a possible sequel and a continued threat to humanity. The brothers brace for future dangers while holding onto the UFO.