Clare Balding presents coverage of the John Smith's Grand National, with 40 horses and jockeys tackling the 30 daunting fences. Irish trained horses have dominated the event in recent years, winning six of the last eight Grand Nationals. But it's Donald McCain, son of Aintree legend Ginger McCain, who has the strongest hand. In total five races from Aintree, with commentary from Jim McGrath, Ian Bartlett, Tony O’Hehir and Darren Owen.