Three close friends who have never left the outskirts of Dublin (much less Ireland) get the journey of a lifetime — a visit to Lourdes, the picturesque French town and place of miracles.

Single mum Flora is at a loss about what to do with her rebellious teenage son, Max. Her efforts to keep him out of trouble lead to a beat-up acoustic guitar, a washed-up LA musician, and harmony for this frayed Dublin family.