I smell a set

[iash]

Villian (CO) is 25/4/.4 over 50 hands or so. Button is aggressive.

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) FTR converter on zerodivide.cx

Hero ($103)
CO ($91)
Button ($49)
SB ($22)
BB ($156.65)
UTG ($28)
UTG+1 ($80.65)
MP1 ($78.85)
MP2 ($40.50)

**EDIT - I am dealt AK

Preflop:
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to $4</font>, CO calls $4, Button calls $4, <font color="#666666">2 folds</font>.

Flop: ($13.50) 2[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, CO checks, <font color="#CC3333">Button bets $6</font>, <font color="#CC3333">Hero raises to $22</font>, CO calls $22, Button folds.

Somewhere in the back of my mind a warning bell goes off when this guy cold-calls my check raise.

Turn: ($63.50) 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

What is my action now? I'm either W/A or W/B I think. $65 in the middle, Villian (CO) has about the same left.

Can I get away from this hand at this point?

Will post rest of hand after comments..

iash