"Deal or No Deal" is a popular game show where contestants choose from sealed briefcases, each containing a different cash amount. The goal is to win the highest amount possible by deciding whether to accept offers from a mysterious banker or continue opening briefcases to reveal their contents. As the game progresses, contestants must weigh the risks and rewards of their choices. The tension builds as they negotiate with the banker, who makes offers based on the remaining amounts in play. Ultimately, the contestant must decide: deal with the banker's offer or no deal and continue the game.