The son of rugby league legend Mark Graham is using his father's sporting career as the basis for a new documentary.
Sharko tells the story of Mark Graham's athletic legacy - including the 29 tests he played for the Kiwis, his historic induction into the NRL Hall of Fame and being named as NZ Player of the Century in 2007.
Luke and Mark Graham joined Piney to discuss the documentary.
LISTEN ABOVE

James McOnie: The Crowd Goes Wild host on the All Whites getting beaten by England
11:14

Johnny McNicholl: Crusaders fullback on the team beating the Blues 52-31
07:08

Mathew Gower: World Rookie Woodchopping Champion talks victory in Budapest
06:22