Phil enlists the help of 'Taylor Swift'
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Phil got a member of the crew to wear a Taylor Swift mask to open the caravan window, before he ran past the window and threw a paper airplane through the door made from the task, which said "FU James Acaster". He admits in studio that he'd planned to initiate a bitter rivalry with James while filming, but had then forgotten all about it.
(Written by Taskmaster Wiki contributors)