Only the Lonely (S13E01)

Tom is feeling unwell but is determined to keep it a secret from his coworkers. He unexpectedly reunites with an old friend who has been caught shoplifting, only to learn that his friend’s actions were driven by desperation to support his ten-year-old daughter battling leukaemia. Meanwhile, Tom continues to resist seeking medical help. Alex grapples with the pressures of fatherhood, which only intensifies when his son, Rory, goes missing, raising fears of a kidnapping linked to gunmen targeting police officers. Ultimately, the Heelers uncover that the gunman’s actions are motivated by revenge for his own son's death.