How I Met Your Mother - Season 2 -

Season 2 is where Barney Stinson evolves from a caricature into a legend.

In the episode "Slap Bet," we learn about Robin’s secret past as Canadian teen pop star Robin Sparkles . This introduces the "Slap Bet," where Marshall wins the right to slap Barney five times at any point in the future. How I Met Your Mother - Season 2

After weeks of tension, they eventually reunite, proving they are the show's emotional anchor. 🥖 The Ted and Robin "Honeymoon" Season 2 is where Barney Stinson evolves from