The transmission also reveals one of the three main ports being used to deposit soldiers into the country is nearby Cobbler's Bay, the only exit from which is the Heron Bridge, which the group then makes plans to destroy.The group sneaks back to Wirrawee, and devise a plan to blow up Heron Bridge.The story follows Ellie Linton, one of seven teenagers waging a guerrilla war against an invading foreign power in their fictional hometown of Wirrawee.The film stars Caitlin Stasey as Ellie Linton and features an ensemble cast including Rachel Hurd-Wood, Lincoln Lewis and Phoebe Tonkin. Principal photography began on 28 September 2009, and concluded on 6 November 2009; filming took place in the Hunter Region and the Blue Mountains, in New South Wales.
In June 2009, Screen Australia announced that it would fund the development of the feature film to be produced based on the novel, to be written and directed by screenwriter Stuart Beattie. Critical response to the film was mixed and it failed to find an overseas audience.
Ellie and Fi steal a petrol tanker from the council depot.
They park it near the bridge and, while waiting for the rest of the team to take their positions.
After being discovered by guards, they rush to drive the tanker forward under the bridge.
The plan necessarily brought forward, Homer and Lee scare a herd of cattle onto the bridge, forcing the sentry guards to flee their posts, allowing Ellie to park the tanker under the bridge unhindered.