Plot Lucy (Henley) and Edmund (Keynes) Pevensie are back in Narnia, this time with their objectionable cousin Eustace Scrubb (Poulter). They join their old chum Caspian (Barnes) on the Dawn Treader, voyaging beyond Narnia’s seas to search out seven lost Lords.Verdict Another mixed Narnian offering which, while it doesn’t bust through the series’ three-star ceiling, at least gives us its best FX, biggest monsters and finest child actor yet.