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Watch 22 Kids and Counting Season 4 Episode 4 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

The Radfords are faced with devastating news from their closest friends the Walkers when their 16-year-old daughter Sophie's cancer returns and an expensive trip to America looks like her only chance for treatment. Noel and Sue rally the troops to raise life-saving funds, kicking off with an urgent video appeal to their half a million followers on social media.