spies just spies

There's two teams of spies, Withers and Dreams.
Enemies from the start, their feud has been going on forever, and every decade, two of the greatest spies from each team go against each other in the long lasting mission of The Jewel.
Legends have told The Jewel is a giant diamond, bringing fortune to everyone. Some say The Jewel gives you all the things you whisper to it. Three things are known by all, however. It is real, it is important, and although the looks of it aren't factual, you'll know it's it when you find it.
And it has been lost for 130 years.
No one has been able to achieve the goal, and sadly, their only options are to be excluded from the team forever, left on the street no matter what condition, or to be executed along with your sworn enemies. The rules are simple.
1) Kill the opposing teams.
2) Don't get caught.
3) Get The Jewel.
4) Never give in.
And so, the two leaders, one from Withers and one from Dreams take their two brightest spies and sends them out.
But there's going to be some....mishaps.
GOOD LUCK