When the Queen is rallying through Mafeking Parade, Hammersmith, they think she'd enjoy them getting out their "todgers" and set off a massive fireworks display, a mixture of rockets and Semtex that leads to the unexpected explosion ending the first act with a cliffhanger.
During the Queen's procession through Mafeking Parade, Hammersmith, they consider having the crowd release 'firecrackers' and then ignite a massive fireworks show, featuring rockets and Semtex, which ultimately leads to an unexpected explosion, ending the first act on a cliffhanger.