The four acts of The Rosary for World Peace feature the four major Mysteries of the Rosary. The Mysteries are prominent events in the lives of Jesus and His mother, Mary, which follow a chronological order from Mary's immaculate conception of Jesus, through Jesus's life, ministry, death, and Resurrection, to the coronation of Mary as the reigning supernatural sovereign queen of heaven and earth. 

The four major Mysteries—The Joyful, Luminous, Sorrowful, and Glorious Mysteries—each contain five sub-sets of mysteries called "decades" that form the five parts or movements within each act of The Rosary for World Peace.

Act I: The Joyful Mysteries

The Joyful Mysteries span the time of Mary's divine conception of Jesus to the time when Jesus was found teaching in the Temple, which is thought to have been when He was about twelve years of age:

Part 1. The Annunciation of the Archangel Gabriel to Mary
Part 2. The Visitation of Mary to Elizabeth
Part 3. The Birth of Jesus in Bethlehem
Part 4. The Presentation of Jesus in the Temple
Part 5. The Finding of Jesus in the Temple

Act II: The Luminous Mysteries

The Luminous Mysteries span the three years from Jesus's baptism by St. John the Baptist to the eve of His Crucifixion, when He was about 30-33 years of age:

Part 1. The Baptism of Jesus
Part 2. The Wedding in Cana
Part 3. The Proclamation of The Kingdom of God
Part 4. The Transfiguration of Jesus
Part 5. The Institution of the Eucharist

Act III: The Sorrowful Mysteries

The Sorrowful Mysteries focus on the eve of Jesus's crucifixion to through the time of His Death the next day:

Part 1. The Agony in the Garden
Part 2. The Scourging at the Pillar
Part 3. The Crowning with Thorns
Part 4. The Carrying of the Cross
Part 5. The Crucifixion of Jesus

Act IV: The Glorious Mysteries

The Glorious Mysteries feature the time from Jesus's Resurrection, three days after His death, to the crowning of His Mother, Mary as queen of heaven and earth, many years later:

Part 1. The Resurrection of Jesus
Part 2. The Ascension of Jesus
Part 3. The Descent of the Holy Spirit
Part 4. The Assumption of Mary into Heaven
Part 5. The Coronation of Mary as Queen of Heaven and Earth