When Barry Allen and Oliver Queen wake up one morning and realize they have swapped bodies with each other, the two set off to find out what disturbed the timeline…

Supergirl, The Flash, Green Arrow and Superman engage in the battle of their lives. The crossover starts on The Flash S05E09 Elseworlds (I) and Arrow S07E09 Elseworlds (II).

House and his team deal with a bullied girl who collapses during her school’s Christmas program. Meanwhile, Foreman and Thirteen grow closer during the Huntington’s disease drug trials, House gives…