Complex sentence: Liv Rooney returns from Hollywood to her birthplace of Stevens Point, Wisconsin after finishing a four-year stint filming a popular television program called "Sing It Loud!", to the open arms of her family, which includes her identical twin sister Maddie.
Split into simpler sentences: Liv Rooney returns to her birthplace of Stevens Point, Wisconsin after finishing a four-year stint in Hollywood filming a popular television program called "Sing It Loud!". She returns to her home Stevens Point, Wisconsin to the open arms of her family, which includes her identical twin sister Maddie.