Club Penguin has released their 40th field op, for the 15th of April. To start with, go to the Elite Penguin Force Command Room for your briefing.
Head over to the Iceberg.
Your spy phone will turn green. Click it, and complete the Field Ops by matching the radio frequency.
If you are still confused, here is a video:
Check back next week for Club Penguin Field Ops 41 Cheats!