With a close election result expected in May the leaders of the smaller parties may decide who becomes prime minister. But what will their price be? In the second of four live shows, the leaders of the Green party, SNP and Plaid Cymru face an audience of over a hundred voters aged 16-34 for an unscripted hour of tough and uncensored questions.The show is presented by Rick Edwards, who chairs the audience contributions, and Tina Daheley who moderates the comments from the online audience.