Three teams are competing on The Really Big Flip; a high risk house flipping competition. The teams are hunting for the perfect property, anxious to find the worst house on the best street. But what does it really take to find, fix and flip a house?

Three teams are competing hard for the most profitable flip. Surging ahead, Rob and Raquel are already lining up trades. Bob and Mick think they've found the winning house and Penny and Leigh are still searching for a property. But in house flips nothing's simple and soon all three teams are struggling.

The three teams dive into their house flips in their own ways. Rob and Raquel have lots to decide, but an uneven debate! Bob and Mick unleash a secret weapon and speed ahead. Meanwhile Penny and Leigh hope they've finally found their flip, but timing is getting very tight.

Bob and Mick are on schedule, tackling anything and feeling great. Penny has finally joined her sister and the two start to rip things apart. In the third team a determined Raquel gets the trades going before the demo is even done, but how long can her break neck schedule last?

Contractor Geoff checks up on the teams. He uncovers more problems than Rob and Raquel want to hear and questions the logic of Penny and Leigh's demo decisions. However, Bob and Mick are in high gear on construction, nothing's holding them back - except maybe their math skills!

After a rave review from contractor Geoff, a confident Bob and Mick trade hammers for paddles. Meanwhile Rob and Raquel solve one setback only to run into others, and Penny and Lee get down and dirty as they unleash a secret weapon.