In fact, Juan is good friends with Julian who's an old bell ringer and a gardener that isn't sure about the swallows' migration to a peaceful island in the summer.
Julian explains to Juan how this beautiful mission was founded by Saint Francis and his brothers, especially Father Junipero Serra.
One day, a baby swallow falls out of the nest and Juan witnesses the shock of the situation with his feathered friends.
On Saint Joseph's Day, the children sing "The Swallow Song" together while they join Juan in the garden.
They'll always come back to Mission San Juan Capistrano in the spring even though he gets to hear Julian sing the swallow song that the children also sang on Saint Joseph's Day.