What is the main conflict in Dancing at Lughnasa by Brian Friel?

There are a few conflicts involved. Their older brother, Michael's Uncle Jack, had just returned from twenty-five years spent as a missionary in a leper colony in Uganda. Michael was born out of wedlock to Chris, the youngest of the Mundy sisters, and Gerry Evans, who deserted her and the child and only returns every couple of years to see her. The radio, which breaks down more than it works, unleashes unarticulated emotions in the five women, who spontaneously break into song and dance, with or without its aid. By the end of the year, as the older Michael explains in monologue, two of the sisters, Rose and Agnes, had run off, never to return, and Uncle Jack had died of a heart attack.