Season 23

Season 23 is the twenty-third and final season of the show Spy Buddies. This is also the first and only season of the Upgraded Missions Series.

Season 23, Part 1
Little Sheep wakes up in an alternate world, where she has apparently destroyed the USA. After getting out of the alternate world, she and Barry are sent into court, where they are accused of tampering with time. After being not guilty, Alex gets released from prison. Not long after, the Earth begins to lose it's oxygen and everyone starts to lose their memory. After an evil organization starts a revolution, Little Sheep, Alex and Barry stop the organization but are sent into the past as a result of The Butterfly Effect. After finding a way to get back into the present, they find out that Milo isn't really an alien, but instead a human who is part of the CIA and can transform to look like an alien. After multiple murder investigations, Barry is no-where to be found, but is eventually found dead, in a nearby lake.

Season 23, Part 2
After getting over Barry's death, Little Sheep and Alex meet someone who allegedly makes everyone feel sick and eventually die. After curing the curse, Little Sheep and Alex meet Dejex and Mega Man, who were transported to Earth while trying to find hidden time machine parts. After finding a part of the time machine, Mega Man and Dejex head back to the planet they were on before. The next day, Little Sheep gets a call from Chief Adriann, saying that she needs to go to an alternate universe to destroy a creature which can rip time and space apart. 2 days later, she is shot into space and uses technology to be forced into the alternate universe, as Alex and the Spy Buddies agents wave goodbye.