Complex sentence: In 1940, scientist Andrew Bryant discovered that bathing himself in a combination of gamma and infrared rays would grant him superpowers; he then used these powers to fight crime, with the help of his detective girlfriend Grace Adams of the Agatha Detective Agency.
Split into simpler sentences: In 1940, scientist Andrew Bryant discovered that bathing himself in a combination of gamma and infrared rays would grant him superpowers. He then used these powers to fight crime, with the help of his detective girlfriend Grace Adams of the Agatha Detective Agency.