Ted is trying to keep his architecture firm afloat by doing an all-nighter, but Marshall tries to lure him to the roof for a surprise 31st birthday party, on the fourth season finale.
Elenco:
Cobie Smulders
,
Josh Radnor
,
Neil Patrick Harris
,
Alyson Hannigan
,
Jason Segel
,
Bob Saget
,
Britney Spears
,
Candice Accola
,
Cristin Milioti
,
David Henrie
,
Lyndsy Fonseca
.
