In season two, time has passed, and news of the miracle has spread, but this time around the plant itself has transformed and the experience and its side effects are far more severe. With the town’s secret having leaked, Anne Carter (Jacqueline McKenzie) – the former CEO of a biotech company – arrives in Mullan with her young daughter and her friend’s teenage son, Luke (Ed Oxenbould), for a tree-change. But it’s only her cover story. John Melvin (Toby Schmitz), the troubled new priest is trying hard to rally faith and is desperate for a miracle from God. While beloved former actress, Gwen Reed (Jacki Weaver/Phoebe Tonkin), has cheated death once again, but at what cost? As news of a “second generation” plant emerges, a battle between nature, science and faith erupts.