|Created by||Adam Savage and Jamie Hyneman|
|Country of origin||United States|
|No. of seasons||1|
|No. of episodes||6|
|Executive producer(s)||Adam Savage
|Production company(s)||Discovery Studios
|Original channel||Discovery Channel|
|Original run||March 18, 2012– May 3, 2012|
Unchained Reaction is a science and engineering reality game show that airs on the Discovery Channel. It is judged and executive-produced by Adam Savage and Jamie Hyneman, best known for hosting the science entertainment series MythBusters.
Premiered on March 18, 2012, the series pits two teams of various backgrounds against each other to build an elaborate chain reaction contraption (sometimes also referred to as a "Rube Goldberg" machine or device). Teams are provided with identical sets of tools and materials and are given five days to construct a series of mechanisms based on a pre-determined theme. Midway through each week, the teams are provided with a surprise "missing link" item that they must add to the middle of their machines. The winner is selected by Savage, Hyneman, and a guest judge.
Discovery Channel announced Unchained Reaction, described by Savage as his "super secret project", on January 20, 2012. In the announcement, Savage said he and Hyneman wanted to create a show "that puts the process of problem solving and ingenuity front and center".
|No.||Title||Guest judge||Original airdate|
|1||"Heavy vs. Light"||Adrian Hightower||March 18, 2012|
|2||"Fire and Ice"||Adam Sadowsky||March 25, 2012|
|3||"Speed"||W. Daniel Hillis||April 1, 2012|
|4||"Take Flight"||Bruce Gray||April 8, 2012|
|5||"Jack of All Trades"||Julia Greer||April 15, 2012|
|6||"Movie Mayhem"||Rick Baker||May 3, 2012|
- "'Mythbusters' Jamie Hyneman & Adam Savage To Exec. Produce New Discovery Channel Series, 'Unchained Reaction'" (Press release). Discovery Channel. 2012-01-20. Retrieved 2012-01-20.
- Unchained Reaction Sunday March 18th @ 10pm *. Discovery Networks. 2012-02-23. Retrieved 2012-02-25.
- Levine, Daniel S (2012-01-20). "'Mythbusters' hosts to launch new Discovery series 'Unchained Reaction'". TheCelebrityCafe.com. Retrieved 2012-01-20.
- Andreeva, Nellie (2012-01-20). "Discovery Orders Series With 'Mythbusters' Stars Adam Savage And Jamie Hyneman". Deadline.com. Retrieved 2012-01-20.