A bromance for the ages, Soul Mates is the story of two kindred spirits trapped in a cycle of death and rebirth. Across four different lifetimes with no knowledge of their past lives, they are forever drawn together as mates. The Cavemen, Rocky and Sticks, explore sex and death in a time of true discovery. The Bondi Hipsters, Adrian Archer and Dom Nadier, experiment with Ayahuasca - unaware of its purpose. New Zealand trains a pair of Assassins, Roger Blade and Terry Thinge, to protect its people and inventions from Australia; and two Travel Time employees, Dave and Rob, have their relationship tested when one is promoted.