It's a big day for Gavin as he prepares to launch his new healthy eating initiative. Meanwhile, Brian gives a harrowing presentation on the dangers of fat.
Duncan's back in store and is far from impressed with Gavin's health food drive. Katie also faces an unwanted visitor in the form of Daniel's girlfriend Holly.
Cheryl orders Gavin to cooperate with Duncan as he launches a new energy drink in store. Meanwhile, things between Holly, Katie and Daniel take an unusual turn.
Brian returns to the store and is clearly unimpressed with humble new pharmacist Alan. Elsewhere, Colin and Lisa witness something horrifying and with romance in the air at the Valco Christmas party.