Answer:
An alternate ending would have been Flynn not jumping from the Lifeboat as it launched so he could go back and see his family before they died, but to stay in the Lifeboat and return to the Time Team and stay with Lucy.
Explanation:
Garcia Flynn from Timeless died after going back in time to a timeline he already existed in and killing an antagonist, thus saving one of the main characters and the rest of the Time Team.
