The TARDIS lands in London on Christmas Eve, 1851 and almost immediately the Doctor hears his name being called. When he meets the woman shouting for him she fails to recognise him and continues calling until another man arrives and claims to be the Doctor and acknowledges the woman, Rosita, as his companion.　　The Doctor then attempts to help the newcomer lasso a man-size dog-li..有时候，我们需要的不是安慰，而是一个可以依靠的肩膀。