Tara makes an awful discovery, and ends up in a fight. Bec has a terrifying encounter with an intruder. Lincoln ponders biosocial crime theory.

Lincoln finds himself giving a tutorial. Bec confesses she called her mum. And Mitch and Tara put the whole family in danger.

After a botched drug deal, Troy must take his family into Witness Protection in exchange for giving evidence against his former employer, vicious crime boss Nils Vandenberg.

Lincoln is missing and Bec fears he's dead while Mitchell and Tara each secretly believe they're responsible for their father's kidnapping.

The Swifts try to make their new identities work as Mitch and Tara start at a new school. Bec and Lincoln distrust Pinder as the case against Nils stalls.

Mitch has run away. Lincoln learns the awful truth about his best friend. To save Mitchell, Lincoln has to face his adversaries head-on.

Lincoln discovers that a hit-man may be on his trail and Bec's renewed friendship with Ash threatens to expose their plight.

Lincoln knows that Sydney is no longer safe, but Bec wants to stay to meet their daughter; and Pinder has to cut the family loose.