Poster of Cast and Crew in Lab Rats - Season 4 - Episode 23 - The Vanishing (1)

Lab Rats - Season 4 - The Vanishing (1) (Episode 23)

Plot: Donald and Douglas reveal that they have built an upgrade for all the students bionics, except for Leo's. But the upgrade doesn't work on Adam, Bree, and Chase because their systems are older
Episode Aired On:
Wednesday, February 3 2016
9 years ago