As their high school graduation approaches, the gang must come to terms with their expectations for the future, while joining together to thwart the FBI when they discover that several members of the group are under surveillance. Meanwhile, Liz begins exhibiting even more alien-like powers, that cause her to see visions of their future - including their deaths.
- Liz, Max, Michael, Isabel, Maria, Kyle, Valenti and Jeff all appear in both the first and last episodes. Liz, Max and Michael are the only characters to appear in every episode.
- Liz, Max, Michael, Isabel, Maria, Kyle and Valenti also appear in all three season finales.
- This is the only season finale not to feature Alex and Tess (although Alex only appeared as a hallucination and in flashback in "The Departure").