Trying to conceive proves less glamorous than expected, and Sophie's dreams of a baby clash with Jamie's fear of adulthood. When Sophie announces she's pregnant, it's panic for Jamie, but first heartbeats, scans and a scare make it real.

With 19 weeks to go, Jamie and Sophie dive into baby prep. Jamie tries to learn to drive and how to keep a robot baby alive. Both prove humbling. Dubbed "Peter Pan," he insists he's maturing. Meanwhile Sophie juggles career wins and worries.

Jamie and Sophie dash to hospital. The birth doesn't go to plan, but in the end Ziggy arrives safely. Back home it's bliss, zero sleep and countless nightly wake-ups. Jamie feels more intern than dad beside Sophie's CEO-level mum skills.