Ep 20. Cold Snap

In Heroes season 3 episode 20, titled "Cold Snap", we see the aftermath of Nathan's assassination attempt. Nathan, who was shot by his own wife in the previous episode, is now in critical condition at a hospital. Peter, who is devastated by his brother's condition, is determined to get revenge on the ones responsible for the attempt on Nathan's life.

Meanwhile, Sylar is dealing with a personal crisis. He has absorbed too many powers and is starting to lose his mind. His uncontrollable powers have now brought about a winter storm in New York City, plunging the city into darkness and chaos.

The episode also focuses on Claire and her father, who are trying to figure out how to stop Sylar. They team up with a new character named Elle, who has a history with Sylar. Together, they plan to take down Sylar once and for all.

The episode is action-packed, with intense fight scenes and an overarching sense of danger. As the ice and snow continue to spread, it becomes apparent that Sylar's powers may be stronger than anyone anticipated.

Throughout the episode, we see various characters confronting their personal demons. Angela Petrelli, the matriarch of the Petrelli family, struggles with the secrets she's been hiding from her family. Hiro, who has time-travel abilities, tries to come to terms with the fact that he may not be as heroic as he thought.

As the episode progresses, the tension builds to a climactic showdown between the heroes and Sylar. The fate of New York City and all those who reside there hangs in the balance.

Overall, "Cold Snap" is an intense and emotional episode that advances the plot in a major way. It offers a glimpse into the emotional struggles faced by the characters, as well as their heroic efforts to save their city from destruction. With stunning visuals and gripping action, it is sure to keep viewers on the edge of their seats.