In this episode of NCIS Sydney, the team delves into the complex world of online conspiracies after a shocking incident shakes their confidence. A car explosion involving the vehicle of a U.S. Navy cyber engineer becomes their central focus. Just moments before the blast, the engineer's teenage daughter was about to start a driving lesson, raising questions about the motives behind the attack. The team must navigate through intricate digital trails and hidden agendas to uncover the truth behind this dangerous conspiracy.