Joe Lycett narrates a journey through the most memorable and jaw-dropping pitches of the last 17 series.

From bickering to full-blown flare-ups, it is not just the entrepreneurs who are feeling the heat in this episode - things get volatile between the Dragons as they fight to win the best deal.

Pitches featured include one for a brolly-dispensing machine, which won the first ever investment in the Den - and also set off the first spat between the Dragons. Tensions rise when all five Dragons vie for a stake in child’s travel toy company, and the biggest ever row in Den history erupts when a commercial submarine business looks for backing. Show less