Ep 21. Breaking the Code

In the 21st episode of the second season of Pretty Little Liars, titled "Breaking the Code," the girls continue their quest to uncover the identity of "A" and bring justice to their friend Alison's murder. With each passing episode, they uncover more clues but also face new challenges.

The episode begins with the girls frantically searching for Emily, who has gone missing. They soon find out that she has been admitted to the hospital due to a drug overdose. As they wait for her to wake up, they are left to wonder who could have drugged her. The situation becomes even more complicated when they discover that someone has stolen a key piece of evidence from the police station, which could have led them to Alison's killer.

Spencer, always the master detective, decides to take matters into her own hands. She gets her hands on a copy of the police station's surveillance footage and enlists the help of Caleb, Hanna's tech-savvy boyfriend, to help her decrypt the video. With Caleb's help, they break the code and uncover a shocking secret that could change everything they know about Alison's murder.

Meanwhile, Aria's relationship with Ezra takes a hit when she reveals a secret that she has been keeping from him. The tension between them is palpable, and Aria is left wondering if she has ruined things for good.

As the girls continue to dig deeper into the mystery of "A" and Alison's murder, they are met with more obstacles and threats. They receive threatening messages and are reminded that their lives are still in danger. But they are determined to find out the truth, no matter the cost.

In the end, the girls uncover a shocking piece of evidence that leads them to a surprising suspect in Alison's murder. But with the stakes higher than ever before, they must proceed with caution and make sure they have all the facts before they make any accusations.

"Breaking the Code" is a thrilling episode that will leave fans on the edge of their seats. As the second season comes to a close, tensions run high and the stakes are higher than ever before. The girls are faced with their biggest challenge yet, but they won't give up until they uncover the truth and bring justice to their friend.