Complex sentence: After Joe's handicapped friends take over the restaurant, Peter expresses his discomfort about the restaurant's coolness to Lois by retrieving a picture of American actor Mark Harmon and showing it to Lois in an attempt to make her understand his concern.
Split into simpler sentences: After Joe's handicapped friends take over the restaurant, Peter expresses his discomfort about the restaurant's coolness to Lois. Peter then retrieves a picture of American actor Mark Harmon and shows it to his wife in an attempt to make her understand his concern.