Complex sentence: Stewart's character Robert "Dutch" Holland is a highly paid, star professional baseball player with the St. Louis Cardinals during spring training in St. Petersburg, Florida, when he is recalled to active duty for 21 months.
Split into simpler sentences: Stewart's character Robert "Dutch" Holland is a highly paid, star professional baseball player with the St. Louis Cardinals. During spring training in St. Petersburg, Florida, he is recalled to active duty for 21 months.