Kaley Cuoco is back as chaotic Cassie Bowden, who was introduced in series one as an alcoholic air stewardess who gets caught up in a murder investigation. 

Series two sees Bowden living a newly sober and healthier life in Los Angeles while secretly moonlighting as a CIA asset in her spare time. 

However, her life is once again turned upside down when an overseas assignment accidentally leads to her witnessing a murder, causing her to become entrapped in another international fiasco. 

Bowden finds herself again escaping into her mind palace to cope, but this time she is joined there by three alternative versions of herself. 

The new eight-part series will see the return of Zosia Mamet, Griffin Matthews, Deniz Akdeniz and Rosie Perez.

With the introduction of new cast members Mo McRae, Callie Hernandez, JJ Soria and Sharon Stone. 

Series two of The Flight Attendant will air on Sky Max and NOW on 26 May.