Shane Embury and of iconic grindcore band Napalm Death talks to host Christina Rowatt about his side projects with Mastodon and Kevin Sharp, the next Napalm Death record, his unforgettable experience with Heaven and Hell vocalist Ronnie James Dio, the early days of grindcore tape trading, the most extreme musicians of all time and more. Also features an interview with Napalm Death vocalist Barney Greenway.