Complex sentence: Though Ruth is content with their lot, Walter is not and desperately wishes to become wealthy, to which ends his plans to invest in a liquor store in partnership with Willy and Bobo, street-smart acquaintances of Walter's.
Split into simpler sentences: Though Ruth is content with their lot, Walter is not and desperately wishes to become wealthy. His plan is to invest in a liquor store in partnership with Willy and Bobo, street-smart acquaintances of Walter's.