Kinchela thus conspires with police informant Harvey Duff to have Robert arrested as a Fenian fugitive,[2] and sent on a ship to Australia.
Robert escapes due to Conn the Shaughraun (Irish seachránaí = wanderer, errant person, a roguish poacher who provides a great deal of comic relief) conning his way onto the ship.
[3] Conn interferes with their plans, bursting Robert out of prison and playing the red herring so the henchmen shoot him dead.
Robert's sister, Claire Ffolliott, is in love with an English soldier, Captain Molineaux, who is tracking down Fenians in the area.
The Fenians receive a general amnesty, the couples marry, Kinchela is arrested, and Harvey Duff falls off a cliff.
The play is attended by the protagonist, Newland Archer, in Edith Wharton's novel The Age of Innocence which is set in 1870s New York.