I have a secondary account that I created so my nieces could play ESO when they come visit. The account has the base game and the expansions but does not own any DLCs. It also does not have ESO Plus. During the ESO Plus free trial period, I took one of the characters to Clockwork City. Before the trial period ended, I traveled to my house in Eastmarch. I did not log into the character until Thursday, the start of Midyear Mayhem. From the house, I traveled directly into Imperial City Sewers.
When I tried to leave the sewers using the Exit door, I was told I had to buy Clockwork City as I did not own it. I thought it would return me to my house but every time I tried to use the door, the game tried to place me back in Clockwork and failed as I did not own it. I finally solved the problem by traveling to Cyrodill and taking a wayshrine from there. However, I was perplexed for a little bit about how to escape the clutches of Molag Bal.
Xbox NA account.