A lie — and a secret — lands the gang in Mexico City. After the principal fails to keep her word, Cindy is driven to make a surprising move.

The physics club moves at full steam, as do Cindy's — and Lucía's — new romances. But things do not remain rose-colored for long.

Sending notes in class leads to a misunderstanding between Tere and Angie. After the school’s talent show, Cindy and Lucía come clean to each other.

Lucía reveals her feelings to Cindy — at least partially. Their double date does not go as planned and a fleeing Cindy stumbles on someone unexpected.

Cindy takes it upon herself to become the change she seeks. Romance flourishes at her clandestine 16th birthday bash.

Prompted by the principal, Cindy looks for a new hobby. A soccer watch party stirs up unsettling emotions for Angie, leading to a confession.

After a bitter start to the school year, Cindy enjoys the sweet taste of victory … until she doesn’t. She and Max discuss making things official.