Complex sentence: It is set in 1936 in the week leading up to the outbreak of hostilities on Ibiza during the Spanish Civil War and describes the events which eventually lead to "Paul", his family and other refugees fleeing the island.
Split into simpler sentences: It is set in 1936 in the week leading up to the brake out of hostility's on Ibiza during the Spanish Civil War. It tells story of the unfolding events which eventually lead to "Paul", his family and other refugee's fleeing the island.