4. San Francisco

Snooker superstar Ronnie O’Sullivan and pal Matt Smith hit the streets of San Francisco in a Steve McQueen-style ’68 Mustang to try to hustle the locals – with some sleight of hand from Ronnie – before he plays pool against one of the game’s biggest ever money-earners. Along the way, they train with local NFL team the 49ers, check out the cyber-future of pool in nearby Silicon Valley – with disastrous results – and get the shocking real story of life behind bars at notorious former prison Alcatraz, from an inspiring ex-guard.