'Static'

Zara and three patients witness the same extraordinary phenomenon at a bus stop - yet all of them have different explanations for what they saw.

Soon afterwards, Zara desperately searches for the foetal heart monitor at The Mill. Cherry notices Zara is in a panic and attempts to find the baby's heartbeat. Eventually they hear it, strong and regular. Zara is relieved but refuses to tell Cherry what is wrong.

As the day continues, Zara reluctantly reveals to Elaine that this morning she saw a white light phenomenon. Kevin suggests that it was ball lightning, but when Zara watches some footage, she claims it's not what she saw.

Later, a vulnerable Zara is forced to admit to Daniel that she doesn't have all the answers and she wonders whether she'll be a good mother at all.