Siobhán McSweeney hosts the semi-final, where the four remaining potters make wall-mounted water fountains inspired by Rome's Trevi Fountain and take on guest judge and ceramic artist Cleo Mussi's surprise mosaic challenge. Whose fountain will make a splash and see them through to the final, and whose mosaic will leave them picking up the pieces?

It's the quarter-final and the remaining potters make self-sculptures of their bodies in motion to fire in brick kilns that they've built themselves. Judges Keith Brymer Jones and Rich Miller set a surprise second challenge concentrating on pot body parts. Whose fired-up figures will carve them out a place in the semi-final?

The remaining potters create floral posies and vases, before guest judge Jo Taylor sets a surprise embellishing second challenge. Who'll bloom into the next round, and whose posy isn't all rosy?

Everyone's feeling peckish in the pottery as the seven remaining potters make terracotta tagines. Guest judge Gabriel Nichols sets a big throw as the second challenge. Siobhán McSweeney hosts, as judges Keith Brymer Jones and Rich Miller put the potters through their paces.

The remaining potters create retro holiday souvenir sets inspired by seaside towns and take on a surprise second challenge making candlestick holders. Who will make waves, and who can hold onto a place in the next round?

Siobhan McSweeney hosts Raku Week and the potters make parent and child animal sculptures, as well as taking on a sculpting spot test set by guest judge and master sculptor Nick Mackman. Whose creations will judges Keith Brymer Jones and Rich Miller go wild for, and whose Raku will get them through?

Siobhán McSweeney hosts the third round of the pottery challenge. The 10 remaining potters attempt to make a puzzle jug and face a surprise blindfolded second challenge. Whose clay code will be cracked when judges Keith Brymer Jones and Rich Miller make the all-important decision?

Siobhán McSweeney hosts the pottery challenge, as judges Keith Brymer Jones and Rich Miller put the potters through their paces. The remaining potters create a statement pair of book ends and face a surprise brickmaking challenge. Whose book ends will start their next chapter, and who'll be bricking it?

The battle of the clay returns, as more hopefuls compete to become champion of the pottery. The potters make soup sets and the bucket of doom is back! Whose galleried jars survive?