Is Gridlock secretly the most conservative episode of Doctor Who? Callum and James go underground this week and get into a heated (read: fiery) discussion about blind faith, religion, conservative values, cat nuns, cat pilots, giant crabs, faces in jars, possible cat-human hybrids... look there's a lot to tackle this week. Strap in and head for the fast lane for this week's Two Hearts!Email us:
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