As anyone who watched the spoiler-packed trailer at the end of last week's opening episode set in China will know already Sean (Ade Oyefeso) doesn't become the meat in a stir fry. Instead he just gets forced to sing karaoke against his will by the people who gave him a lift – though if it was me I'd rather end up in a wok, but that's just shy old me. For Sean, the biggest challenge is hooking up with his fellow travellers again via the bullet train. Which involves finding the right bullet train in the first place.