Jessica Alba cast in 'Spy Kids 4'

Jessica Alba will lead the cast of the revived Spy Kids franchise.

The actress will reunite with her Sin City and Machete director Robert Rodriguez to play a mother of a baby and two pre-teen stepchildren who is reactivated for secret agent duties, says The Hollywood Reporter.

Alba's two oldest children will be the new Spy Kids, taking over from original stars Alexa Vega and Daryl Sabara, who are expected to appear in supporting roles alongside Antonio Banderas.

The movie revolves around a plot hatched by a villain called the Time Keeper to freeze time.

Rodriguez will begin production on Spy Kids 4: All The Time In The World next month in Austin, Texas with a $30 million budget. It will be the second movie in the series to be released in 3D.