The Doctor, having just visited a scientist named Emmett at the hospital psychiatric ward, waits for a bus in a heavy downpour. While he waits, he chats with a woman named Elsie about her husband and about how buses come in threes. He tells her he knows someone who thinks he can control the weather. On the bus, the Doctor entertains a boy and his mother with magic tricks and strikes up a conversation with a teenager. The storms worsens, and the Doctor lightens the mood on the bus by leading everyone in song.