Christine Lahti Returns as McGarrett’s Mother on ‘Hawaii Five-0’ (PHOTOS)

arrow - left
arrow - right
Ka 'i'o (DNA)
CBS
Ka 'i'o (DNA)
CBS

Grover (Chi McBride) and McGarrett (Alex O’Loughlin)

Ka 'i'o (DNA)
CBS

McGarrett

Ka 'i'o (DNA)
CBS

What’s in the truck?

Ka 'i'o (DNA)
Sonja Flemming/CBS

McGarrett searches for his mother

Ka 'i'o (DNA)
Sonja Flemming/CBS

McGarrett in Mexico

Ka 'i'o (DNA)
Sonja Flemming/CBS

Will he find Doris?

Ka 'i'o (DNA)
CBS

Junior (Beulah Koale), Danny (Scott Caan), and Tani (Meaghan Rath)

Ka 'i'o (DNA)
CBS

Adam (Ian Anthony Dale) and Grover

Ka 'i'o (DNA)
CBS

What’s McGarrett looking at?

Ka 'i'o (DNA)
CBS

Christine Lahti returns as Doris McGarrett

Ka 'i'o (DNA)
CBS

Steve and Doris McGarrett

Ka 'i'o (DNA)
CBS

McGarrett

Ka 'i'o (DNA)
CBS

Junior

Ka 'i'o (DNA)
CBS

What’s on the wall behind him?

Ka 'i'o (DNA)
CBS

McGarrett’s mission-ready

Ka 'i'o (DNA)
CBS

Who or what does McGarrett have in his sights?

Ka 'i'o (DNA)
CBS

Junior

Ka 'i'o (DNA)
CBS

McGarrett

Ka 'i'o (DNA)
CBS

Mother and son

1 of

McGarrett (Alex O’Loughlin) is heading to Mexico in Friday’s episode of Hawaii Five-0.

Christine Lahti returns as Steve’s mother, Doris, when the CIA informs her son that she’s gone rogue on her undercover mission and may have killed her partner. Can he bring her home and prove she’s innocent? O’Loughlin wrote and directed the episode.

'Hawaii Five-0' Star Confirms Season 10 Exit — Will He Be Back?See Also

'Hawaii Five-0' Star Confirms Season 10 Exit — Will He Be Back?

The CBS series toasted to its 10th season while also bidding farewell to a longtime member of the team.

Click through the gallery above for a look at McGarrett in Mexico, reuniting with his mother, and more.

Hawaii Five-0, Fridays, 8/7c, CBS