Extra Terrestrial: Did anything actually happen in 1923?

We hear from Jack's mum for the last time before our new series and get answers to the question... did anything actually happen in 1923?!<br /><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>