The academy students, including newly enrolled Daniel, suddenly vanish after receiving an operating system upgrade. The team initially blames a glitch, but realize the kids are pawns in a much bigger master plan. The Lab Rats put their lives at risk when they face off against the vanished students' captors - Giselle, who has restored the evil android Marcus, now seeking revenge on the family.moreless
Donald takes everyone for a visit to Davenportia, the first human space colony located on a remote planet called Lithios in another galaxy. However, all goes wrong when they encounter a familiar foe and troubles arise.
Chase and Davenport create a new, groundbreaking energy source and unveil it to the world. Meanwhile, Kaz and Oliver visit the academy in hopes that Kaz will finally obtain powers. But both plans are interrupted when the Incapacitator steals Davenport's new device and the bionic heroes end up in an unwitting battle with Mighty Med's superheroes.moreless
When a series of suspicious events happen overnight at the academy, everyone is convinced a new threat has emerged. They suspect Kerry, Perry's conniving niece, who's visiting the island.
Chase, Adam, Bree and Leo discover that Sebastian has secretly formed an evil rebellion to get revenge for his father’s defeat by trying to kill Davenport, leading to a bionic battle of good versus evil.