"It's a big emotional thing to do, to challenge the leadership of your political party," says former prime minister Julia Gillard. "There's nothing pleasant about it, there's nothing fun about it. It's quite a horrible, gut-wrenching process."
Kevin Rudd was notorious for his bad temper. A video of him swearing while filming an announcement was posted anonymously on YouTube in 2012, and he reduced a RAAF flight attendant to tears over an in-flight meal in 2009.
Julia Gillard recollects a time when she was manager of opposition business. When a tactics meeting didn't go Kevin Rudd's way, he confronted her afterwards.
Kevin Rudd and Julia Gillard worked together to overthrow Kim Beazley as Labor leader in 2006. Deputy opposition leader Jenny Macklin stood aside to allow Julia Gillard to take her role.
But Kevin Rudd maintains he was blindsided by Gillard's leadership challenge.
The episode ends with Kevin Rudd relaying the moment she stepped into his office to ask him to resign. "I said to her repeatedly, 'but Julia you're a good person. Why are you doing this?'"