Even More Pics From 'The Fosters' Summer Premiere!

Maia Mitchell helps out Hayden Byerly with his homework in this new still from The Fosters.

In “Things Unknown,” It’s a big day for Callie (Mitchell) as her future with the Fosters hinges on the revelation that Donald is not her birth father. What happens next could threaten to separate Callie and Jude (Byerly) once again. Brandon (David Lambert) struggles to recover and come to terms with his guilt over sleeping with Dani (Marla Sokoloff), and big questions still remain about what Mike (Danny Nucci) was up to the night Ana (Alexandra Barreto) disappeared.

Meanwhile, Jesus (Jake T. Austin) and Emma’s (Amanda Leighton) relationship impacts Emma’s standing with her teammates, which causes tension between them. Mariana (Cierra Ramirez) has made a big change, much to Stef’s (Teri Polo) dismay.

“Things Unknown” premieres Monday, June 16 @9PM ET/PT on ABC Family. 10+ pics inside…