Odin Remby is in big trouble. Almost 18, brilliant and slightly autistic, Odin is the computer geek for a radical animal rights group called Storm. When Storm breaks into the Singular Corp research lab in Eugene, Oregon, the members free numerous injured animals and steal encrypted flash drives. Odin discovers the drives contain damaging information that will prove Singular’s alleged Parkinson’s research is a cover for something much more sinister.
Using secret Facebook accounts, he informs his 16-year-old sister, Shay, that he’s on the run. Shay, still in foster care after the death of their parents, gets a visit from Singular security officers named Cherry and West. She can tell by their questions that her brother is in trouble, probably in the Hollywood area. She packs a bag and takes a bus to Hollywood from Oregon to find him.
After Shay has been on the streets of Hollywood for a few days, some thugs accost her. A scarred man with a bowler hat and gold-headed walking stick appears. He and his henchmen beat up the thugs, and he gives Shay his card in case she needs a place to stay. Through various channels, she learns the man, known only as Twist, is not another pimp or slaver. He’s an independently wealthy, politically active street artist who provides safe lodging for homeless kids in an old hotel. Shay stays in his hotel with a roommate named Emily. She also meets Cade, Twist’s young computer guru, and another street kid named Cruz.
The foster parents Shay left were avid rock climbers, who taught her how to climb. When Twist learns about Shay’s climbing experiences, he immediately enlists her to help with his latest project. He’s planning to unfurl a gigantic banner on a building near the freeway to protest the harsh treatment of immigrants. Shay’s ability to lock the roof door and rappel down the building will prevent anyone from taking down the banner before it gets ample news coverage. News photos of Shay’s descent reveal her whereabouts to the Singular security staff. They begin following her.
Several days later, Shay hears about whales washing up on a beach nearby. Activists and conservationists are struggling to get them back in the water. Shay knows this is the sort of place where Odin will show up, so she gets Emily, Cade and Cruz to take her. She is able to meet up with Odin briefly. He gives her a bag of thumb drives for safekeeping, only one of which he’s been able to decode so far. He also begs her to take a straggly dog he has rescued from the Singular lab. It has a patch over one eye and looks sick and weak. Twist’s hotel doesn’t allow pets, but Odin is so desperate that Shay agrees.
Cherry and West appear on the beach, and Odin runs. Shay watches helplessly as someone in a van kidnaps Odin. Shay helps West after he’s injured by another fleeing Storm member. Shay learns West, a disabled veteran, has high-tech prosthetic legs, courtesy of Singular and their research.
As the dog, called X, deteriorates in health, Shay comes clean about her pet and enlists Twist’s help. She’s sure the dog is micro-chipped so he can’t be taken to a regular vet. Twist takes her to a doctor who is stunned, after examining the dog. He says X is equipped with high-tech legs and a revolutionary artificial eye that link to his brain waves. Despite the dog’s state-of-the-art body parts, he seems to be dying. Shay examines him and finds a port through which she can plug him into a computer. After she “recharges” the dog, he begins to heal.
Meanwhile, Singular thugs are torturing Odin, trying to find out where Storm is hiding and learn what Odin knows about the corporation’s secret work. Shay breaks one of Odin’s codes and finds disturbing videos on the thumb drive he left her. Singular appears to be using human test subjects, giving them memories belonging to other people and otherwise impairing their brains.
West begins to learn the truth about Singular’s experiments and secretly helps Shay dodge the corporation’s attempts to capture her. Twist, along with Cruz and Cade, rig up an elaborate lighted banner on the famed Hollywood sign directing people to a website called mindkill.com. On the site, they post the videos of what Singular is doing to human test subjects. A media frenzy ensues.
West learns where Odin is being imprisoned and helps Shay and her friends break in to rescue him. Shay gets temporarily separated from her friends and drastically changes her appearance so she won’t be recognized. Singular kills West for helping Shay and holds a press conference that touts their robotics research. They show a veteran with prosthetic legs, similar to what West had, who can do amazing things. They say Storm’s attack on their facility set them back from making this technology more available to the public. Shay is reunited with Twist, Cade, Cruz, Odin and a female test subject they rescued from Odin’s prison. When Shay learns Singular has killed West, she’s all the more determined to seek revenge.