The term 'Plan B' has become political shorthand for the notion that the UK Government's cuts programme should be replaced with an alternative that focuses more on growing the economy.
Plaid Cymru leader Leanne Wood thinks there's enough of a consensus amongst groups on the left of politics that they should form their own coalition to oppose that of the UK. But many of the organisations on the left have strong links to Labour - so how successful will she be?
Lynn Courtney has been finding out.
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Welsh students who work in Wales after graduating could benefit from tuition debt write-off of up to £6,000 a year, under new Plaid plans.
There are already 17 directly elected Mayors in England but none across the border so far.
Bristol Airport says abolishing air passenger duty in Wales would result in passengers and airlines flying from Cardiff instead.