The Fosters: First Look at Lena's '70s-Tastic Birthday Bash (PHOTOS)

Emily Maas Aslanian
The Fosters
Eric McCandless/Freeform

Can you dig it? The Fosters celebrates Lena’s (Sherri Saum) big 4-0 with a trip to the ’70s on the July 25 episode of the Freeform drama, as the family’s backyard is transformed into a Studio 54–inspired club for the party.

The Fosters

Eric McCandless/Freeform

More of Lena's 40th on The Fosters; Teri Polo and Sherri Saum (l-r).

The whole cast got into the theme. “Our costume designer is so talented and meticulous,” says executive producer Joanna Johnson. “She put together some fantastic iconic ’70s looks.”

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Of course, no family occasion comes without drama, this time courtesy of Lena’s mom, Dana (Lorraine Toussaint), and dad, Stewart (Bruce Davison). “He has a secret, which is going to come out at the party,” Johnson says.

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Drama aside, the Fosters will definitely get funky. “At the end of the party, Lena wants the whole family out on the dance floor,” Johnson says. “So we have a fun, musical moment.” Boogie on!

The Fosters, Mondays, 8/7c, Freeform.