A new film tells the story of the "fastest-growing church" in the world, an underground, persecuted Christian movement in a country known for exporting radical Islamic terrorism — Iran.

People in Iran, a Muslim-majority nation, are fleeing Islam in droves as believers bow their knee to Jesus and become aggressively pro-Israel, according to the documentary "Sheep Among Wolves Volume II."

“What if I told you Islam is dead?” one unidentified Iranian church leader says in the film, which was directed by Dalton Thomas and produced by Frontier Alliance International Studios.

“What if I told you the mosques are empty inside Iran?" he continues. "What if I told you no one follows Islam inside of Iran? Would you believe me? This is exactly what is happening inside of Iran. God is moving powerfully inside of Iran.”

IRAQI CHRISTIAN SURVIVES BEING BURNED ALIVE BY ISIS 3 TIMES: '[JESUS] SPOKE TO ME'

The pastor adds: “What if I told you the best evangelist for Jesus was the Ayatollah Khomeini? The ayatollahs brought the true face of Islam to light and people discovered it was a lie...After 40 years under Islamic law — a utopia according to them — they’ve had the worst devastation in the 5,000-year history of Iran.”

Thomas calls the movement "the Iranian awakening."

"It owns no property, no buildings, no central leadership, and is predominantly led by women," he said in a statement.

NORTH KOREA PROPAGANDA VIDEO DETAILS CHRISTIAN MARTYR’S ‘MISSION FROM THE ENEMY’ TO BUILD UNDERGROUND CHURCH

Named after the Bible verse Matthew 10:16 which says, “Behold, I am sending you out as sheep in the midst of wolves, so be wise as serpents and innocent as doves,” the documentary claims "Muslim-background Iranians are leading a quiet but mass exodus out of Islam and bowing their knees to the Jewish Messiah -- with kindled affection toward the Jewish people."

But the new believers in the Islamic Republic face great risks.

CHRISTIAN PERSECUTION CLOSE TO 'GENOCIDE LEVELS,' LARGELY IGNORED DUE TO 'POLITICAL CORRECTNESS': REPORT

"We know that if they get us, the first thing they will do to us as a woman is rape us and then they will beat us and ultimately they will kill us," one believer said. "This is the decision we have made that we want to offer our bodies as sacrifices. Because I have this thought when I wake up, that when I leave, that door I might not come back."

A leader of the Iranian underground church explains their goal is not planting churches but rather making disciples, the majority of whom are women.

"Disciples forsake the world and cling to Jesus 'till he comes. Converts don't," the leader said. "Disciples aren't engaged in a culture war. Converts are. Disciples cherish, obey, and share the word of God. Converts don't. Disciples choose Jesus over anything and everything else. Converts don't. Converts run when the fire comes. Disciples don't."

And a pastor explains everything they do underground is built on prayer.

CLICK HERE TO GET THE FOX NEWS APP

"We find people of peace through prayer. We even find locations through prayer,” he says. "[Jesus] has come in their dreams or he’s come miraculously in their lives. When we hear this, we know that Jesus has gone ahead of us.”