Arrow Season 2



Critic Ratings: 12
Critics Consensus

Cleverly chaotic, "Unthinkable" closes out the second season with plenty of thrills and equal respect for Arrow's more minor characters.

Episode Info

All-out war is declared in this blistering season finale when, pushed to the edge, Oliver tries to stop arch- nemesis Slade once and for all.


Stephen Amell
as Oliver Queen
Katie Cassidy
as Dinah "Laurel" Lance
Colin Donnell
as Tommy Merlyn
Colin Salmon
as Walter Steele
David Ramsey
as John Diggle
Jamey Sheridan
as Robert Queen
Paul Blackthorne
as Quentin Lance
Willa Holland
as Thea Queen
Emily Bett Rickards
as Felicity Smoak
Show More Cast

Unthinkable Photos

Critic Reviews for Unthinkable

After not resolving much over the past few episodes, the show sure took care of a lot of loose ends tonight!

Feb 7, 2019 | Full Review…

"Unthinkable" is clever in that it gives every supporting character and every random guest star a little moment amid the chaos to show off why they're worthy of our time.

Jul 31, 2018 | Rating: A | Full Review…

Despite the urgency of the finale, and its solid effort in maintaining a consistency with the thematic elements of the season, 'Unthinkable' also brought several threads to a close, while expanding others in interesting ways.

Aug 7, 2018 | Full Review…

The Arrow finale, "Unthinkable, "was quite a ride. Specifically, it was Space Mountain, because most of us did not see what was coming for much of the episode.

Aug 2, 2018 | Full Review…

There were plenty of great moments, but on the whole "Unthinkable" felt a bit anticlimactic in some areas and lacked a bit of the emotional oomph that recent installments like "Seeing Red" delivered in spades.

Aug 2, 2018 | Rating: 8.4/10 | Full Review…

In the end, "Unthinkable" may not have blown our minds in quite the manner we expected, but still provided a concise, and thrilling resolution to an overall extraordinary season.

Aug 2, 2018 | Full Review…

"Unthinkable" was more than just a season finale.

Feb 7, 2019 | Full Review…

"Unthinkable" does what any great finale should-it expertly ties up several ongoing storylines while opening up the world for new, bigger adventures.

Aug 2, 2018 | Rating: 9.1/10 | Full Review…

'Unthinkable' isn't perfect, but it's pretty darn close, bringing a sensational season of television to a suitably epic end.

Aug 1, 2018 | Full Review…

Is "Unthinkable" the most action packed episode of Arrow? It might be.

Aug 1, 2018 | Rating: 4/5 | Full Review…

All in all, this has been a reliably entertaining season with solid writing, incredible action, lots of fan service regarding relationships and comic book mythology, and surprises at every turn.

Jul 31, 2018 | Rating: A- | Full Review…

The payoff to a consistently impressive run of episodes, "Unthinkable" proves to be a phenomenally busy season finale, one that feels in danger of buckling beneath the weight of its own expectations.

Feb 7, 2019 | Rating: 4/5 | Full Review…