On the south shore of Long Island in the summer of 1983, a group of working-class teenagers and 20-somethings work their summer jobs, fall in and out of love, and wrestle with what the future holds when the summer ends and the real world beckons.

The siblings of the Fitzgerald family must decide if the dad who abandoned them 20 years ago can come home for Christmas. Can the big Irish clan get past their grievances to be a family again?

Mickey, a free-spirited New York cabbie, and Francis, a materialistic Wall Street stockbroker, are extremely competitive and confused about women as a result of their father’s influence. Though they disagree about everything, they have one thing in common: Mickey’s ex-fiance Heather is Francis’s secret love. Though both brothers have beautiful wives, Heather triggers their longtime sibling rivalry

A groom (Ed Burns) and his four attendants wrestle with issues related to friendship and maturity a week before the big day.