With the heart of an explorer and the passion of an evangelist, David Livingstone mapped vast, unexplored areas of Africa, sharing the gospel with whomever he encountered. His stamina, perseverance, and dogged determination created the legacy of a trailblazing explorer with an undying hunger to make Christ known wherever his steps led him. David Livingstone's captivating adventures and tireless zeal continue to inspire countless men and women to bring the gospel message of God's love to those souls who have never heard.

Unless God helps us, there is no hope, Captain Morris yelled over the roar of the storm. Hudson Taylor had to agree. Indeed the Dumfries might sink this very day and he would never live to see the shores of China, a land whose people he was certain God had called him to. Hudson survived his perilous maiden voyage to his beloved China. With his heart set in determined obedience to God, Hudson overcame persecution and almost overwhelming personal losses to bring God's truth to the "ripe harvest fields" of China.

Amy Carmichael's (1867-1951) life was one of simple, determined obedience to God, regardless of the consequences. Her service in India is a vivid example of the impact one person who will fear God and nothing else can have. Driven by love, sustained by faith and determination, this young woman from Northern Ireland defied the cruel barriers of India's caste system.

When he became God's smuggler, Brother Andrew (1928- ) was already familiar with risk. As a boy, the intrepid Andrew van der Bijl joined the Dutch Resistance against the Nazi occupation. As a young man, he fought eagerly in the Dutch East Indies - until the horror of war turned the adventure seeker to a life of alcohol and desperation. Redeemed by God, the Dutchman became a daring messenger of hope, smuggling Scripture through closed borders and equipping persecuted Christians behind the Iron Curtain.

When Lillian Trasher (1887-1961) founded Egypt's first orphanage, others thought that a lone American woman with no means of support would surely be killed or starve to death. But Lillian - certain of God's guidance - stood by her earlier promise to Him, "If ever I can do anything for You, just let me know - and I'll do it."

Suddenly, Corrie's (1892-1983) ordered life was lost in the insanity of war. With bravery and compassion, her family and countless other Dutch citizens risked everything to extend God's hand to those innocents marked for certain execution in a world gone mad. Corrie ten Boom's life of determination, faith, and forgiveness in the face of unimaginable brutality and hardship is a stunning testimony of the sustaining power of God.

With scarcely enough food or money for his own family, George Müller (1805-1898) opened his heart and home. Sustained by God's provision, the Müller house "Breakfast Club" of thirty orphans grew to five large houses that ultimately over ten thousand children would call home. George Müller trusted God with a depth rarely seen. His faith and generosity set a standard for Christians of all generations.

God would indeed answer the prayer of the fiery, red-haired woman from Scotland. For 39 years, Mary Slessor would labor in love among the unreached, often treacherous, tribes of Africa's Calabar region. Braving sickness, danger, and death on all sides, Mary became the cherished "White Ma" to entire tribes. Her faith, steadfastness, and pioneering spirit brought her beloved adopted people their first brilliant, contrasting example of the life and freedom found in Jesus Christ.

Eric's (1902-1945) refusal earlier that week to run on Sunday in the Olympic 100-meter race had stunned the world. Now his incredible victory in the 400-meter race further strengthened his believe in God's promise, "He who honors Me, I will honor." Years later, Eric Liddell would be tested far beyond mere physical ability as a missionary to China. His character, perseverance, and endurance are a challenging example for all who would obey the call to bring the gospel to the nations.

Flying soon captured Nate's (1923-1956) heart. His air-service ministry to isolated missionaries put him on a path of destiny that would ultimately end with a final airplane flight with four missionary friends to the "Palm Beach" landing strip in the jungles of Ecuador. The men's lives given that day not only opened a door to the gospel for the unreached "Aucas"; it has been said that possibly no single event of the twentieth century awakened more hearts to God's call to serve in missions.

Ida had never forgotten the faces of starving Indian children. She hated India - it was full of horrible situations she could do nothing about. Ida Scudder was sure she would never follow in the footsteps of her medical missionary father. But when she witnessed Indian women dying because their religious beliefs didn't allow male doctors to treat them, Ida heard herself pray, "God, if you want me to, I will spend the rest of my life in India trying to help these women."

William's amazing journey to India would prove to be just the beginning of a missionary quest filled with hardship and heartache as well as tremendous victories. Often referred to as "the father of modern missions", William Carey displayed a single-minded determination to set his face like a flint to the task of bringing the gospel to those lost in darkness. His life of service and sacrifice is a guidepost to Christians of all generations.

Missionary trio Mildred Cable and Evangeline and Franscesca French were the first Englishwomen to cross the infamous Gobi Desert, living for years among the diverse peoples of northwestern China in places few Europeans ever reached. Educated and rich, Mildred Cable (1878-1952) once planned to be a concert pianist. Instead she served the people of China through wars and revolutions. Mildred followed Jesus with grit, determination, intelligence, and faith.

During WWI, Cameron Townsend (1896-1982) was told, "You'll do more good selling Bibles in Central America than you would shooting Germans in France." Cameron began by translating the Bible into the language of his Guatemalan friends. Then he started Wycliffe Bible Translators with the dream of making the Good News available in every language. Since 1942, Wycliffe has translated Scripture into hundreds of languages, spreading God's Word to people everywhere.

Aboard the Aquitania, Rachel became aware of something strange happening to her. It was as if she were not on the deck of the ship anymore but was instead in a jungle clearing, looking at a group of brown-skinned, half-naked people. The people beckoned her to come. Suddenly the scene vanished, and Rachel fell to her knees and prayed.