Three graduates of Corpus Christi College, Oxford pit their wits against a trio of cat lovers.
Three map lovers take on a team from Wales.
A trio connected by their love of all things French take on three festival attendees.
A trio of GPs square up to three fell walkers.
Three Oxford graduates and a trio of map lovers, who both lost their first heats, return for another chance at making the semi-finals.
Three GPs and a trio of festival fans return for a second chance at making the semi-finals.
The Celts and the Cat Lovers, both first-round winners, return in the hopes of securing a place in the semi-finals.
The Francophiles and the Fell Walkers, both first-round winners, return in the hopes of securing a place in the semi-finals.
A trio of festival fans take on three cat lovers in both teams' last chance to make it to the semi-finals.
Three map lovers and a trio of fell walkers return to try to make it to the semi-finals.
In the first of the semi-finals, a team from Wales take on a trio of festival fans.
In the second semi-final, three Francophiles square up to a trio of map lovers.
In this series finale, the Francophiles take on the Celts in a bid to be named Only Connect Champions.