Seeds of a greener lifestyle are planted in Mt. Thomas. Councillor Chris Riley has concerns about a proposal for an abattoire by the river but the locals won't hear of any opposition. They need jobs for their kids—forget environmental concerns! The Heelers can't ignore the matter when the pub's beer delivery is smashed by some dangerous stunt driving that nearly takes Jack out as well. When Tom's ex-army and retired policeman buddy, Bob, decides to grow organic herbs, his crop-spraying neighbour is furious. He reckons Bob is growing weeds, but if he sprays his own land Bob's patch will be contaminated. Tom finds himself planted firmly in the middle of two men who have a right to their livelihood, but at grave cost to each other. Loyalties to an old mate must be put aside. This becomes far easier when Bob hires Tom's sweetheart, Sally Downie, to sort things out and begins to romance her after hours. Tom is confounded when cannabis plants are found on his mate's property. He's an ex-copper and knows the score, but this isn't the kind of greening Tom wants in his town. The Heelers become tangled in a vine of suspicion. Bob's neighbour might well have planted them. He's not going to let Bob sick the Department of Agriculture on him without a fight. Maggie is suspicious of Bob's friendship with his neighbour's pregnant daughter, who has a history of drug abuse. Memories of her brother Robbie's promises to stay clean remain noxious. When the pregnant woman and Chris become violently ill and end up in hospital after using Bob's popular herbal tinctures, the spat over good weed versus bad has gone too far.