"Las Azules," aka "Women in Blue," will return for a second season on Apple TV in August. Photo courtesy of Apple TV

July 21 (UPI) -- Apple TV is teasing Las Azules Season 2.

The streaming service shared a trailer for the season Tuesday featuring Bárbara Mori.

Las Azules, aka Women in Blue, is a Spanish-language crime drama created by Fernando Rovzar and Pablo Aramendi. The series follows the women of Mexico's first female police force.

In Season 2, María (Mori) and the Blues search for a "methodical" killer whose victims include a person with a connection to the student massacre of 1968.