Callie, a hardened teen with an abusive past who has spent her life in and out of foster homes. Lena and Stef warily welcome Callie into their home thinking it's just for a few weeks, until a more permanent placement can be found.

Callie is accused of selling pills around school.

The Fosters cope with a crowded house but when Mike suggests that Brandon come live with him, Stef argues that it's not Brandon's decision, resulting in a heated argument with her son.

Lena wants to throw Mariana the perfect Quinces party, while Stef balks at the cost of the event. Prompted by her mums, Mariana invites Callie to be in her court and Callie awkwardly accepts.

When things between Jesus and Lexi get hot and heavy, they are forced to face the possible consequences of their actions.

When Lexi's parents take measures to keep her away from Jesus, Lexi makes a desperate decision, which could have serious and lasting consequences for her and her family.

A visit from Lena's beautiful and sophisticated ex-girlfriend reveals a secret yearning Lena has hidden from Stef for the past ten years.

Mariana and Jesus deal with the repercussions of their actions.

The Fosters are getting married, but Stef is not as involved as Lena likes.

Stef and Lena discover Callie has run away from home and try to figure out why when they were going to adopt her.

A stern foster-care worker supervises Callie. Brandon searches for Callie after he confesses why she ran away; Mariana gets involved with the school play; and Jesus struggles with his new medication and tries out for the wrestling team.

Callie and Brandon sneak around. Stef goes back to work, worrying Lena. Jesus joins the wrestling team. Mariana is caught in a love triangle.

Callie considers applying for an apartment. Lena wonders if she can still have a baby while Stef has trouble accepting her father's apology. Jesus diets to drop a weight class in wrestling.

Stef deals with a loss. Callie faces a tough decision.

Brandon goes to extremes to pay Mike back for the piano lessons. Stef is worried about having to testify.

Callie takes pictures of foster kids to help them get a house and a family.

Lexi visits Jesus by surprise. Stef and Lena decide on a sperm donor.

Callie visits her father to see if he will sign away his parental rights so she and Jude can be adopted. Mariana meets Zac's mother.

Ana gives Stef an ultimatum. Wyatt comes back to town. Callie is the butt of a school prank.

Callie and Jude find out the truth about Donald. Vico seeks revenge against Brandon.