Chain reaction.

Chain Reaction was a Spanish television contest presented by Ion Aramendi and broadcast on Telecinco between December 19, 2022 and July 12, 2025. In this contest, two teams of three people (friends, family, co-workers, etc.) face each other, who compete in different tests to solve word chains while accumulating money with the aim of taking a jackpot of up to €150,000 every day.