Angelo Astone has just been recruited to the Tassie Devils in the National Australian Rules Football Competition (NARC). He is an 18-year-old boy from country Victoria. Todd Thomson is the star of the competition, captain of the Tassie Devils who has been recruited from Western Australia to help lift the team. There is only one problem - Thomson has a serious drug problem and can't control it. Not only that but he is coercing other players, especially new recruits, to sell drugs for him as he grows his drug empire. The Tassie Devils are struggling. In debt to the tune of $30 million, they haven't played finals in five years and revenue in all areas is falling. The club's chairman, Geoffrey Bush, a successful businessman, thinks the CEO Simon Cunnington is strange and incompetent and the only way out of the debt is to float the club on the stockmarket. Problem is that two of his board members, Wang Li and Rahul Patel, from China and India respectively, not only want to buy the club outright but also want to host a NARC in their home country and will do anything to get that opportunity.

As the season unfolds drama after drama encapsulates the club with Thomson's behaviour growing more reckless and young Angelo falling in love for the first time. Thomson's network of drug suppliers grows causing mayhem in and out of the club who are more than willing to turn a blind eye in the quest for a premiership. What are the consequences? And what price will the club play? One Season depicts one topsy turvy ride of a professional sporting club who think the only boundaries that exist are the ones marking the oval.