KEY POINTS:
Brad Pitt and Angelina Jolie are terrified for their son Pax Thein's safety after learning of a $100 million plot to kidnap him.
The Hollywood couple have reportedly tightened security after their bodyguards heard of a "credible and meticulously planned" bid to snatch their newly adopted three-year-old Vietnamese son.
The Los Angeles-based gang members were allegedly planning to demand a staggering $100 million ransom.
A source Life and Style Weekly magazine: "They're highly skilled operatives with little regard for human life. "Information came out that leaders of the gang ordered their Los Angeles members to devise a plan to kidnap Pax before demanding a ransom of $100 million for his safe return.
"Brad and Angelina would have a number of days to hand over the money or risk the boy's life."
The gang behind the alleged plot are said to have previously carried out a number of kidnappings.
The couple - who have two other adopted children, Maddox and Zahara, and a naturally conceived daughter Shiloh - were allegedly informed of the threat as Angelina was preparing to leave Vietnam with Pax earlier this month.
A friend of the couple said the "life drained out of Brad" when his security team told him his son was in legitimate danger.
A spokesman for the couple has denied the claims.
- BANG! SHOWBIZ