There will be team-ups abound on The Fosters Season 4 Episode 19.

Lena and Monte cast their tension and differences aside and join forces to figure out what the heck Drew has planned for Anchor Beach. He has proven to be conniving and devious, and Lena has caught word of some of Drew's shady dealings.

Stef and her new partner, Margo, continue to work the prostitution case in hopes of capturing Diamond's pimp.

Stef also has to take in all the new things popping up with Callie's impending trial.

Robert's attorneys approach Callie with a defense strategy that she refuses to take part in.

Elsewhere, Jesus enlists the help of Gabe for his treehouse project, and Mariana and Emma finally talk it out.

Secrets are spilling all over the place. Will Mariana's secret site be next? We'll have to see. Until then, check out the photos below.

You can watch The Fosters online right here via TV Fanatic.

1. Stakeout - The Fosters Season 4 Episode 19

Lena and Monte partner up in an effort to figure out what's going on with Drew and his dealings with the high school.

2. Mariana - The Fosters Season 4 Episode 19

Mariana is contemplative. Will all of her secrets that she posted online be revealed?

3. The Full Monte - The Fosters Season 4 Episode 19

Monte can't be too happy about being fired, but is she willing to put her feelings aside to team up with Lena? It looks like it.

4. Partners In Crime...Fighting - The Fosters Season 4 Episode 19

Stef and Margo make quite the dynamic duo. Will they be able to arrest Diamond's pimp?

5. BFFs - The Fosters Season 4 Episode 19

Emma and Mariana have not had the opportunity to really discuss Emma's abortion. It's time for a chat.

6. A Not So Friendly Face - The Fosters Season 4 Episode 19

Callie's case is coming up and it looks like a familiar witness may be used against her. What can Stef do about it?

7. Click - The Fosters Season 4 Episode 19

Monte takes pictures on her cellphone in hopes of documenting all of Drew's shady dealings.

8. Scouring The Web - The Fosters Season 4 Episode 19

What can Margo and Stef possibly find on that mysterious laptop that will help them close their case?

9. Bickering Buddies - The Fosters Season 4 Episode 19

Can Lena and Monte let bygones be bygones long enough to stop Drew from changing the status of Anchor Beach?

10. Shooting Daggers - The Fosters Season 4 Episode 19

Stef has had enough of all of the stress. She's over it and over being blindsided during Callie's case.

11. What's next? - The Fosters Season 4 Episode 19

Stef and Margo discuss their next step in trying to catch Diamond's pimp. Maybe the laptop will just the break in the case that they need. Hope it's not password protected.