We love Bunnings — it's where we go for our weekend sausage sizzle and to fulfill our DIY dreams.  

But what if the store Australians trust most is not as benign as it would have us believe?  

Bunnings has quietly become one of Australia's most dominant and profitable retailers, with rivals saying its market power matches Coles and Woolworths combined.   

Yet it faces none of the scrutiny of the big two supermarkets.  

Critics also claim it's a corporate predator systematically picking off independents, shutting down competition and abusing its dominance with suppliers. 

For its part Bunnings insists it's just another competitor in a crowded field.  

Four Corners' Angus Grigg and Emilia Terzon from the ABC business team dig into Bunnings' unchecked dominance, its soaring profits, and whether regulators have turned a blind eye while it reshapes Australian retail.  

This is the untold story of how Bunnings became a national icon — and what we lose when one brand dominates the backyard.  

"Decimated" reported by Patricia Karvelas, produced by Alex McDonald and Joshua Martin for Four Corners, hears from Liberal insiders following the fallout of the Federal Election.

They lost the inner-city seats and now the outer suburbs. Can the Liberal Party ever recover from its historic election loss?

Behind closed doors a battle is raging for the heart and soul of the party.

ABC presenter Patricia Karvelas talks to Liberal insiders as they grapple with the existential crisis of what the Liberal Party stands for and who it represents.

Liberal Party powerbrokers talk to Four Corners candidly and honestly about the contest which will redefine Australian politics.

With the Nationals walking away from the Coalition, the Liberals face the very real prospect that they may never govern again.

The party of Menzies and Howard faces a reckoning: can they rebuild and win back middle Australia or face further losses?

Four Corners charts the inside story of these monumental political shifts.