It is nearly Christmas, 1742, and young Englishman John Newton returns from the sea ("Prologue"). His childhood friend, Mary Catlett, an aspiring singer, is angry that John abandoned his musical education to seek adventure at sea. John’s father, Captain Newton, a wealthy slave-trader arrives; he is angry that his son has rejected his plans for him ("Truly Alive"). John and his friend Haweis begin the day's auction without the Captain. The cargo is African slaves ("The Auction"). A commotion ensues when the slave is freed by a group of hooded abolitionists; Mary gives up her cloak to conceal the young woman and aid her escape. John is humiliated and is tasked by Major Gray to find and retrieve the slave. John argues with Mary; he still suffers from the loss of his dear mother at age eight. Mary encourages John's better nature, singing a song he wrote for her years ago ("Someone Who Hears"). Mary is secretly invited to join an abolitionist group. She talks with her black maidservant, Nanna, about how Nanna became a slave and lost her daughter ("Yema's Song"). Mary's mother encourages her to pursue a relationship with the handsome and aristocratic Major Gray, who is interested in Mary. Mary, John and Gray all attend a Christmas ball where Mary performs a song that John wrote ("Voices of the Angels"). John drinks too much and offends everyone, including his father and Mary. Redcoat soldiers drag in two badly beaten abolitionists and the pregnant slave, also beaten. Major Gray scornfully points out that his soldiers, rather than John and his civil authorities, retrieved the slave. Gray leaves with Mary.
The next day, Mary meets with the abolitionists; they relate plans to undermine the slave trade ("We Are Determined"). She agrees to begin a relationship with Major Gray to act as their spy. Meanwhile, John is press-ganged into the Navy aboard the H.M.S. Harwich; When his father refuses to help him, and John breaks all ties with him ("Never"). Thomas, the Newton’s house slave, attempts to intercede on John's behalf, and Captain Newton sends him on the ship as well. Mary struggles with her feelings for John ("Shadows of Innocence"). At her home, Major Gray proposes to Mary. As a cousin of George II, he must introduce Mary to the King to obtain royal consent to the marriage ("Expectations"). John's carelessness allows a French warship to defeat the Harwich, whose crew is killed. John falls into the sea, and Thomas dives in to save his master ("Battle at Sea").
John and Thomas are captured In Sierra Leone, by African warriors and their Princess Peyai, a ruthless slave trader, who threatens to kill John. John defies her ("Welcome Song") and is chained to a post and saved from starvation by a young slave girl, Yema. Meanwhile, Mary performs with the town choir ("Sing on High") and learns from Captain Newton that the Harwich has been lost ("Tell Me Why"). Peyai sends a letter to Captain Newton demanding ransom. Captain Newton prepares to sail to Sierra Leone ("A Chance for Me"), and Mary asks him to give John a letter. John uses his knowledge of the slave business to help Peyai to break up African families and assign slaves to ships. The Princess tests John's loyalty, pressuring him to sell Thomas as a slave bound for Barbados. As he is chained, Thomas confronts John about his choices ("Nowhere Left to Run"). Back in England, Major Gray learns that Mary plans to speak against slavery in front of Prince Frederick at the Christmas concert at court, where she has been asked to perform. He imprisons Nanna and threatens to harm her if Mary does anything foolish, but Nanna tells Mary to speak regardless of the Consequences ("Daybreak"). Captain Newton reaches Africa to pay the ransom for John, but a gunfight erupts; Peyai is killed, while Captain Newton is gravely wounded and soon dies aboard ship.
John assumes the role of Captain and finds Mary's letter inside his father's coat ("I Still Believe"). That night, John survives a fierce storm, remaining all night alone on deck, confronted by visions of the many lives he has destroyed ("Testimony"). He has an epiphany and turns the ship towards Barbados. He eventually finds and frees Thomas (whose African name is Pakuteh). John tells Pakuteh that he will spend his life working against the slave trade. Pakuteh is reluctant to forgive John ("I Will Remember") but relents and goes with him to England. John arrives home; Mary delivers an impassioned plea to Prince Frederick to end the barbarity of slavery. John bolsters her argument, vowing to undo his former evil. The Prince humiliates and demotes Gray. John and Mary reunite ("Nothing There to Love"). Pakuteh (Thomas), now a free man, recounts that John and Mary wed, and John went on to write hundreds of hymns ("Amazing Grace").
Check back soon when libretto and/or lyrics for Amazing Grace becomes available.