According to the search results, the season finale of "When Calls the Heart" Season 10 is titled "Starry Nights". The episode centers around the election day in Hope Valley, where Lucas is running against Governor Balfour to stop him from destroying smaller towns. Meanwhile, Elizabeth and Lucas were supposed to get married, but things dont go as planned. The episode ends with a cliffhanger, where Lucas is missing, and Bill is seen reacting to something off-screen. It is unclear what happened to Lucas, and viewers are left wondering if he is injured or dead. The love triangle between Elizabeth, Lucas, and Nathan is also reignited, with Elizabeth and Nathan having a conversation in the same spot where Nathan declared his love for her in season 8. The episode ends with Elizabeth asking Nathan what he is doing there, and he replies, "I dont know. What are you doing here?".