Barney and Robin find themselves in an uncomfortable situation when they hide a secret from their significant others. Meanwhile, Marshall, Lily and Ted attend a concert.
Hurley begins to suspect that Sawyer may be involved in an island mystery surrounding two fellow survivors, and Sun learns the truth about her past kidnapping attempt by "The Others."
Claiming not to be protected by the white man's law, a gang of young Cherokee Indians goes on a rampage, robbing museums and taking Indian artifacts that it claims were stolen from ancient Indian burial sites.
