The Vanishing (1) (S04E23)
S04E23
Donald and Douglas announce that they've developed a bionic upgrade for all the students, except for Leo. Unfortunately, Adam, Bree, and Chase can’t benefit from it because their systems are outdated, leaving them at a disadvantage while the others gain new powers. Meanwhile, Daniel arrives at the Academy after being caught using his bionics outside. Douglas decides to enroll him and assigns Leo as his mentor. Despite Leo's efforts to teach him, Daniel struggles to learn, prompting Leo to give him the upgrade. Soon, students, including Daniel, begin to disappear, and it’s revealed that Giselle Vickers, Douglas' former girlfriend, is behind it. In a bid for help, Daniel sends a video message back to the Island.
Show
Lab Rats
Episode
S04E23
Air Date
Feb 03, 2016
Season 4 Episodes
S04E01
Bionic Rebellion (1)
S04E02
Bionic Rebellion (2)
S04E03
Left Behind
S04E04
Under Siege
S04E05
Bionic Dog
S04E06
Mission Mania
S04E07
Simulation Manipulation
S04E08
Forbidden Hero
S04E09
Spider Island
S04E10
Spike vs. Spikette
S04E11
Lab Rats vs. Mighty Med
S04E12
Space Elevator
S04E13
Bionic Action Hero (1)
S04E14
Bionic Action Hero (2)
S04E15
One of Us
S04E16
Bob Zombie
S04E17
Human Eddy
S04E18
The Curse of the Screaming Skull
S04E19
On the Edge
S04E20
Ultimate Tailgate Challenge
S04E21
And Then There Were Four
S04E22
Space Colony
S04E23
The Vanishing (1)
S04E24
The Vanishing (2)