Olympic pole vaulter Eliza McCartney on her stunning comeback, learning to walk again, trusting your decisions and knowing your potential.

That trademark winning smile is back. Seven years since pole vaulter Eliza McCartney won a bronze medal at the Olympics, the 26 year old's launched a comeback to the sport she loves. Plagued with injuries it's been a rocky road but she was determined not to give up. Incredibly, it meant a year of learning how to walk again. Her patience paid off with a qualification to the World Championships in Hungary. The next goal, the Paris Olympics 2024. In a full and honest conversation, she talks about how she's a wildly different athlete now from when she won that Olympic medal.