Buffy The Vampire Slayer (1997) - 4x13 - The I In Team

Buffy becomes familiar with the Initiative and begins to work with them although they are still unaware of her true power as a Slayer. After Buffy abandons her friends at the Bronze for a mission with the Initiative, Buffy and Riley consummate their relationship unaware that they are being watched on a hidden camera by Walsh. Meanwhile, Giles and the rest of the gang remove a tracking device the commandos shot into Spike's back.