[2] The story begins to relate how Finn úa Báiscni courts Gráinne, daughter of King Cormac mac Airt.
Intending to shake off the warrior, whom she seriously dislikes, she comes up with a seemingly impossible demand as her bridal gift: "a couple of every wild animal that was in Ireland to be brought in one drove, until they were on the rampart of Tara".
One time when the Feast of Tara is celebrated, with all the men of Ireland and the fiana present, Cormac observes the sad expression on his daughter's face.
Overhearing Cormac's reaction to the sad news, Finn becomes aware of Gráinne's plight and announces their separation.
The text ends with a number of difficult legal roscada exchanged between Cormac and Finn on the subject of divorce.