What is the fine-grained topic of the following text: Viggo Mortensen offers up an Oscar-worthy performance as a father of six who has chosen to live “off the grid” in order to protect his children from what he feels are the toxins and hypocrisies of modern day life. Only return the topic.
Viggo Mortensen's performance in a role as a father living off-grid with his children to avoid modern life's negatives.