In the summer of 2006, British counter-terrorism operatives launched a massive, high-stakes surveillance operation to thwart a sophisticated plot to detonate liquid explosives on passenger airliners. As the investigation unfolded, authorities uncovered a network of individuals who were meticulously planning an attack that threatened to mirror the devastation of 9/11. With the lives of thousands at risk, the team worked tirelessly to identify the key players and prevent a catastrophic event that could have changed the course of history.