Property developer Leslie Henderson wants to demolish a quirky 1940s building and erect a modern office block in its place. But the building happens to be occupied by R&P Labs, and in 'Bedrock', its staff members face their biggest challenge yet. Mitch has an explosive evening, Phil hits a rocky patch and Virginia finally gets a piece of the action as the five scientific sleuths race the wrecker's ball to uncover a secret that will rip a family apart and cost two people their lives.