This week Richard welcomes Ali and Larry Weinstein, co-directors of "The Impossible Swim." In July 2018, Maya Farrell attempted her second crossing of Lake Ontario, following in the footsteps of great Canadian female marathon swimmers Marilyn Bell and Vicki Keith. Featuring interviews with Bell and Keith, \u2018The Impossible Swim\u2019 explores the legacy, what it takes physically and mentally to be a marathon athlete, and the new rising regime.