After the unexpected death of the Pope, Cardinal Lawrence is tasked with managing the covert and ancient ritual of electing a new one. Sequestered in the Vatican with the Catholic Church’s most powerful leaders until the process is complete, Lawrence finds himself at the center of a conspiracy that could lead to its downfall.

Paddington travels to Peru to visit his beloved Aunt Lucy, who now resides at the Home for Retired Bears. With the Brown Family in tow, a thrilling adventure ensues when a mystery plunges them into an unexpected journey through the Amazon rainforest and up to the mountain peaks of Peru.