Complex sentence: Originally, the viewers were to do Uri's mental challenge to win $10,000, but despite the fact that Criss Angel offered Jim Callahan to earn $1,000,000 of his own money but the arguement broke up, the contest was not shown.
Split into simpler sentences: Originally, the viewers were to do Uri's mental challenge to win $10,000. Despite the fact that Criss Angel challenged Jim Callahan with $1 million of his own money, the argument broke up, and the contest was not shown.