The mysterious newcomer Vincent attracts the unwelcome attention of the Kemble Gang, a bunch of notorious brigands who control the locality. Vincent finds himself captured - and staked out to die on the treacherous Gull Beach.
Having escaped from the Kemble Gang's clutches, Honesty makes a desperate bid to save Vincent's life. He must be quick - the tide is entering Gull Beach and Vincent faces a watery death.
During a dangerous smuggling expedition to France, Jack finds a stowaway on board.
Sarah's grandfather is accused of being a French spy. Suspecting that the Kembles are behind the accusations, Sarah begs Vincent to help. But Jack has other things to occupy his mind: Revenue man Marwood is after his blood.
Discovering that the Kembles are in league with a French spy - whose identity is known to him - Vincent sets out to prove König's innocence by facing the villains in their own stronghold.
When Honesty Evans is forced into taking a navy commission by a press gang, Vincent has to find a way freeing him - without breaking the law.
Helping out an old smuggler called Rummy Culbert results in Vincent almost being caught by revenue officer Taggart.
Honesty's interest in Sophia, a spoilt young girl staying with Sarah, leads to trouble.
Jack is determined to get his hands on a sunken cargo of rum - but he must beat a number of other interested parties to the prize.
Jack has to try to rescue Sarah and her grandfather, who are being held by a rabble of shipwrecked convicts.
A pair of sailors turn up from Jack's past accusing him of treachery, but are they telling the truth?