Engine no.4 were hired by the department store Fenwick for the second year running, to manage the logistics for a digital reveal of their famous annual Christmas window reveal. In 2020, Fenwick were unable to reveal the window to a live audience, as usual, due to Covid-19 restrictions. Following the success of this event of viewers tuning in from all around the world, Fenwick decided to keep the reveal digital in 2021, with a small number of invited guests. Engine No.4 worked closely with the local authority and nearby businesses, managed the road closures, suppliers, security, site design and more.