In 2012, Laviai Nielsen stood behind Jessica Ennis-Hill on the Olympic track as a kit-carrier. Her twin sister Lina stood in the lane next to her. Five years later, they are chasing their dream to run at the World Championships in the same stadium. A snapshot of a pair of extraordinary twin sisters, Lina/Laviai is a short documentary that focuses on their unique bond as they attempt to take athletics to the next level.