Lab Rats Bionic Showdown: Part 1 (2012–2016) Online
- Original Title :
- Bionic Showdown: Part 1
- Genre :
- TV Episode / Action / Comedy / Family / Sci-Fi
- Year :
- 2012–2016
- Directror :
- Victor Gonzalez
- Cast :
- William Brent,Spencer Boldman,Kelli Berglund
- Writer :
- Ken Blankstein,Bryan Moore
- Type :
- TV Episode
- Time :
- 21min
- Rating :
- 8.3/10
Adam, Bree and Chase chafe at Donald's persistent criticism of, and lack of praise for, their successful mission efforts - but a more serious problem arises when Douglas (Donald's long-thought-dead younger brother) returns with a vengeance. Kidnapping Donald with Marcus' aid, they force the bionic teens to come to them. Leo, finally vindicated for having said Marcus was evil the whole time, can now also reveal that Marcus has bionics to match Adam, Bree and Chase. Nonetheless, the bionic teens infiltrate the Douglas and Marcus home where they face an unnerving discovery - Donald wasn't upfront about their past.
| Episode cast overview: | |||
 | William Brent | - | Chase Davenport (as Billy Unger) |
 | Spencer Boldman | - | Adam Davenport |
 | Kelli Berglund | - | Bree Davenport |
 | Tyrel Jackson Williams | - | Leo Dooley |
 | Hal Sparks | - | Donald Davenport |
 | Jeremy Kent Jackson | - | Douglas Davenport |
 | Mateus Ward | - | Marcus Davenport |
 | Will Forte | - | Eddy (voice) |
The absence of Tasha (Angel Parker) is finally explained as her being away on reporting assignments.