It's 1990, the start of a new era for Martin Moone (David Rawle) and his imaginary friend Sean Murphy (Chris O'Dowd). It's the year of Ireland's historic victories, and draw-ings, at the Italia '90 World Cup - which, to the family's dismay, has clashed with their annual pilgrimage to damp Donegal. It's a year when Martin starts secondary school and promptly develops a crush on his beautiful, but mental art teacher, Miss Tivnan (Amy Huberman), who he tries to impress with his slick moves at the school dance. It's a year with a Halloween ghost-raft adventure where Martin and Padraic meet the mysterious 'Island Joe' (Pat Shortt). There's also a religious-themed stag party, an epic golf battle, and an even more epic St. Patrick's Day parade. Oh, and Martin falls in love with a Traveller.