In Episode 5, it is revealed that Sean, Julian's son, killed Bronte. Sean was with Bronte at the beach when she suspected his involvement in Gabby's death. After a confrontation, Sean delivered a fatal blow to Bronte's skull and then tried to frame Brian for the murder. Verity discovers the truth from Sean's father and alerts the police, leading to Sean's arrest.

Julian did not directly kill Gabby or Bronte but hid the truth from the authorities once he learned about his son Sean's involvement. He concealed Sean's actions, which contributed to the ongoing mystery and suspicion in the community.

The episode opens with a flashback showing young Gabby and Mia arriving at a house party. Gabby wants to see Kieran, Toby, and Finn, and she goes off with Finn and Toby to get a beer, leaving Mia alone. This scene sets up the relationships and tensions among the characters that are central to the unfolding mystery.

In the present day, Verity thanks Kieran for his efforts in understanding Brian's situation. She decides to stay with Brian to help get him out of jail, while Kieran returns to Evelyn Bay to reunite Audrey with her mother and represent the family at a memorial football match for Finn and Toby.

Brian is initially suspected of involvement in the murders, but Alex believes Brian is innocent and was trying to save Bronte. It is suggested that Ash framed Brian by planting evidence against him. Verity stays with Brian to support him and work towards his release from jail.